Bitcoin Forum

Hi all! I got into cryto this same time last year, I wanna share with you the dumbest thing I did as a noob back then, and it still haunting me.

I created a new ethereum wallet last year I stocked it up with 25eth..am very poor at that time eth was 4$ each I think..that was the most I could afford, I was using an ethereum client node, unfortunately for me I wrote down my wallet address instead of the private key. Now m been haunted by that fact I could have been a millionaire in my country..#dumbestthingyoudidincrypt

I stopped and for me that was the dumbest move i made because if i didnt stop maybe i am earning many coins and i can help my family financially, my tip for you is dont stop in this industry

Я зaxoдил в мoнeты нa xaяx, в нaдeждe нa дaльнeйший pocт.

My dumbest thing I did when I do panic selling all of my holding coins. Selling those at a low price If I hold for a bit and wait atleast a profit maybe I have already in huge of btc.

I have invested around 1 bitcoin in one of the ponzi when price per bitcoin was only around $500, lost all of it but at current price total amount that I have lost is around $17000  >:(

Also just like you I have forget to make proper backup of my myetherwallet where I have around 10 ETH.

You guys are making me feel much better about accidentally cutting, not copying my Komodo seed from a notes file last week after a few too many bourbons and losing 200 coins. Aside from that it would likely be not holding the BTC/ETH etc when I first started dabbling in September. On the plus side I've tripled my portfolio since Nov.

My dumbest thing i invest money from ico to another ico.

The dumbest thing happened with me in last 2 months all my altcoin portfolio gone more than 80% loss in BTC . Every time i was thinking to sell and waiting for bitcoin dumb from 5000 USD i was waiting till now . Lost hope the good thing is that still am in profit while comparing USD investment.

Only consider the loss of 500$ at that time because you might have sold at that moment itself had it being in your wallet. I regret now that I had earned some fractional btc for the work done for them and I spent in my early days to purchase  something for myself. Only if I calculate at present value it is a nightmare to me that i bought it multiple times costly stuffs for others and myself.

I bought 200 LTC at 5, sold at around 75. Can't complain EVER when ringing the cash register though - it is what it is. I wound up selling for ETH and doubled or so still. Made a few similar moves to that one, whatevs.

what the reason for u quitting?..you got rekt or what?

Also, my first move in crypto was investing 5 ETH into UKG.

Purchased those ETH for about $270 each.

5 ETH today = $3100
My 3972 UKG = $700  ???

sell more than 4 million xlm at 0.03 and now it 0.12 in only 3 month. I totatly fak up. If I dont do that my life will be difference

Ico are the worse scam now..even if they don't scam you. Holding BTC would have been far off better..if only we know earlier

Dumbest thing I did? Well I didnt pay attention on crypto before. I didnt see future for this kind of thing. But then look at me now, Im here and Im totally astonished by how this thing goes. I cannot say that Im a pro at this but Im pretty sure that Im not the only one. So for all those newbies out there I will suggest to you that keep on reading reliable articles. Study how this thing works and Ill guaranteed you a sweet taste of success. You should have plan first before going to any transaction like trading or buying some alt coins. Seeking advice on people with the same perspective would be a great advantage for you. Good luck!

hahaha..that frustrating bro

regret is a normal thing that crypto users feel. sold my bitcoins when the price cheap around $500 and regret now because the price increased pretty high. At that time I never thought the price can reach $1000 but now $16000. I'm shocked

Sending coins and $$$ to scammers. I am still doing that. I can't understand all the work they make to earn 50$. They could make 500$ with the same work legal  ::)

The dumbest thing i've ever done is sending eth from exchange wallet to smart contract, i don't know how things work back then and i thought i can use exchange ethereum address. Loss about 3 eth because i can claim the token from the exchange.

Like an idiot with know knowledge of this space...well Mark Cuban is backing it, it has to be good!

I'm confident UKG will eventually turn a profit, but I'd still rather have those 5 ETH back :)

The most stupid mistake I made was that I did not start crypto currency at least a year ago! I did not buy bitcoin when it cost less than $ 1000. Already had a motorcycle of my dreams ((

Well for me as a newbie you will be so greedy and gullible, i did so many horrible things back then, selling tokens for cheap price (just to experience how to trade lol).

The dumbest thing i did was join a ponzi site and invest around only 10$ as a trial to see if it really give what it advertise to my surprise i didnt get any well that was 3-4 years ago and learned that those site arent to be trusted.

I bought few coins during their pump thinking that i am wolf of wall street and not doing my research first and technical analysis on those.That did cost me few thousands in the end but i managed to get them back after realising that as a trader i cant react on fomo and fud.Also i would say that not going in fast enough on the mining rigs but instead thinking about it for more then 3 months

Dumbest thing I did was spend a year wasting Bitcoin on the dark web..

No major mistakes have been made on my behalf, but keeping some Ripples more would of been good, since Ripple is on a high rise atm, and probably heading to $1.
That would of meant lots of profit.

I only mined 1.9 LTC back in 2012 I think it was. If I had kept going I would have been a multi-millionaire but my crappy laptop made a huge noise from the CPU working at 100% capacity.

Dumbest thing was to start cloud mining with Josh Garza's GAW (Geniuses at work, rofl).

Biggest mistake is not investing in all the top coins, and instead investing is shitcoins because they were "cheaper"

I heard whats the bitcoin in 2014. My friend told me.
This is my dumbest thing... I could be rich right now :D

Oh there are so many dumb things I have done. The first one is not mining bitcoin back in 2012 and the last one was selling IOTA at $1.2. There are plenty in between as well. Guess will keep updating my posts as soon as I make another one :)

Sold 14ETH for 80ish pounds thinking I was a genius and there was no way it could go higher. 14ETH atm is £6.8k and climbing.
Lesson learned: The crypto sphere has enormous scope for growth; don't underestimate its potential.

Panicked when Ark first started dropping and sold it all, then bought it all back shortly after when it started rising again. 2k Ark gone for no reason :) As of now, that 2k is worth £6.5k.
Lesson learned: Just because a coin is going down doesn't mean it's bad.

Spent the £600 pounds I was going to use to buy Dash on a plane ticket. Wasn't really my fault as this was a family obligation but I could have put my foot down. When I saw it skyrocketting I didn't buy back in because I was salty. As of now, that decision has "cost" me £66,500.
Lesson learned: Don't get salty just because you missed an opportunity to buy in early. This helped me recently. I meant to buy Iota one day but ended up getting delayed, and it went up by 40% overnight. I was feeling bitter, but I still bought in. Since then what I put in has almost tripled.

There was also PivX... It sounded promising to me and I was going to buy a few hundred pounds' worth one night, but I'd read an article earlier saying to not buy coins on impulse when you're tried. I thought it made sense and decided to ignore PivX. Shortly after, the anon-coin frenzy kicked in and PivX exploded. It went up by (IIRC) x100. As of now it's gone up by over 200x. I'm not even going to calculate how much that would be.
Lesson Learned: None. Ouch.

I'm already pretty long time at crypto. So my the dumbest thing is the selling of BTC from my long term portfolio at $3k. I hate that day...

I think just let it go brother, it is will hurt you and give negative effect for your life and trading if you think about it and hunt you daily, i made mistakes too, like invest and do trading like noob buy high sell low because of FOMO. and then i learn i must fight the fear and have positive mental attitude like "let it go" and "nothing to loose".

25 ethereum is indeed big amount now so far I have not lose any coin from misusing my wallet, first thing I learn is to learn how to keep your coin safe but dumbest thing I did was sold all my highly potential coins in the market like litecoin now I only have a few litecoin in my wallet.

The stupidest thing, when I was really a beginner, was to have increased to 300 Gwei at Etherdelta, I was $ 17, with this i spent $ 16. The cumulu of stupidity.

When i joined useless airdrops,faucets such things are the dumbest thing that a newbie will do.

This wasn't the time I was noob, just most dumb thing I think  ;D

I bought 5 BTC at $4.8k and then in dropped and not climbed for about 1 month, and at the moment when he reached again its cost about $4.9k i sell it, on the next 24h price jumped to about $5.8+k

failures to lose money was not, however there were steps that did not allow me to earn significantly on the growth of some coins

Dumbest thing I did in crypto was not joining even earlier. Also a few bad transactions here and there, selling to early or not selling when I should have.

Yes, not investing in Bitcoin all those years ago was the dumbest thing I've ever had to experience. But the good thing is that Altcoins are become as useful and valuable as Bitcoin is slowly.
Ethereum is doing so well now, and so is Litecoin and Ripple. Great year incoming.

The dumbest thing I have done in crypto is investing around 2bitcoin into a ponzi scheme this time last year and all my bitcoin was scam. I felt very bad and foolish enough to have believed all that was told by the scheme as at that time, by now I should have been a millionaire with the help of bitcoin price rise recently.

The guilt is terrible bro..and all this in less than 2months

There's really no point to keep dwelling on something you did in the past which looked like the smart move to do but now looks like a mistake.  There will be many more opportunities to regain those missed financial gains.  Keep researching for the next Bitcoin.  Cryptocurrency is making people fortunes everyday. 

The dumbest thing I did was when I waited for the coin ebtc (from free airdrop) to reach $1 and not sell it so I could earn a fortune because it was my first coin. I watched it drop until I decided to sell it at $0.03 at the order book. Then later on it rose higher, still haunting me till today.

I used to think way overpaying for my L3+ from a third party seller, but considering that that reached ROI like 3 months ahead of schedule thanks to the recent rise in LTC value, I'd have to go with buying a D3.

For me it is mainly panicking when trading and making losses by selling as soon as a coin starts falling. Nowadays I make better assessments and I am more patient if I am confident that a falling coin will rise again.

It was my first time trading and one time I saw a coin rising fast (I think it's in the process of pumping) so I bought big time then suddenly the rising stop and drop slowly, I waited for 2 hours to see if it is still going up but that was it, I lost half my money that time.

I think the dumbest thing I've ever did in my crypto life when I was a noob was when I started trading, and I really didn't know what I was doing and thought it's going to be easy like 1,2, 3 and so I clicked a lot of things until I accidentally hit sell and sold all of my coins which could've made me a millionaire now. It haunts me up until now every time I logged in on that exchange site.

I am actually surprised I have not done anything really stupid yet.

The worst thing is probably that I bought Espers when it was at its highest pump. That was my first crypto trade and I bought into hype. It's worth 1/10th of what I paid, fortunately I only spent $100 on it.
The second dumb thing was that I sold Ark at $1.1 and 8 hours later it soared to $2 and a few days later to $4-5. But then again I bought it at $0.65 so I gained almost double profit. It's just that I could've gotten much more from it.

Every other investiment I've done have been increased nicely, Waves (bought at between $2-$4), NEO ($6), SunContract ($0.035), Shift ($1), Nexus ($1.7).

I think investing into HashOcean mining program, it was clear that this people are not real but ignore the warning and looking for free BTC until they one day disappear, I learned my lessons and now no there is no free launch anywhere

The dumbest thing I did when I started was to buy from coinbase with credit card. Insanely expensive compared to just buying on exchange. But I was noob, so what could i do.
Another rookie mistake was waiting when BTC hit 1000 USD, instead of buying. Because I felt it was too expensive at the time.  ;D

I sold my Ethereum at $20 to rebuy it back for ~$50... But man that okey at these Ethereum levels today.. We shouldnt look back, there are so many good chances right now :)

The most stupid situation with crypto currency is when I collected a few bitcoins in my wallet, and then quite unsuccessfully lost access to this wallet. And now, looking at the price of bitcoin, it's not that elbows, but I want to bite all.

I sold BTC3.2 four years ago for total profit not even $100. Now it's worth aprox. $55000. Another EPIC FAIL I did was, when my Siacoins reached $2500 I have chance to switch it for BTC1 at that time. I didn't and I am still HODLing SC (https://coinmarketcap.com/currencies/siacoin/) and believing in project, but I could have so much more...  :'(

We all did dump things when we just started, the dumbest thing you can do now is not to evolve, there is always a chance. I would recommend you to invest to a good ICO, I will invest to www.diwtoken.com , this ICO looks very promising and here is your chance to be millionaire

Dumbest thing I did was only put $200 into Ardor. I basucally bought NXT then split half into Ardor early costing me money. I wanted to put $1000 but the job was not stable yet. Cost me $140k so far.

Dumest thing I did... nothing.  I literally did nothing when my instincts told me I should have bought BTC. 

I have always had a knack for identifying things that have good potential for profit, and until recently I never did anything.  I have always said I would use $1,000 to invest in something.  I read an article about BTC in 2013, when it was under $100 each.  My gut told me to buy, my logic told me not to.  I didn't.  The result... I don't have $170,000 that I could have had.

Something similar happened a couple of years earlier on a stock that I was interested in.  In a matter of one year my $1,000 would have been worth $10,000.

I started doing some P2P lending about 8 months ago, which is earning 14%.  I started in crypto a little over a month ago, and my gains currently sit at 90%.  Should have done it a long time ago.  I'm in crypto for the long-term now.

my stupidest experience in the world of cryptocurrency is when I have been paid with a new altcoin, from the bounty campaign. I immediately sold the coin at the lowest bid price, and then the coins rose almost 10x from the price I sold, I felt very stupid

For me it is not getting in several years ago. I started to research bitcoin from mainstream media reports, but I realise now that these were articles written by people who didnt know what they were talking about... at the time it made me think crypto was pointless... now I am much better informed... I hope!

I remember when first started with bitcoin. I invest in some legit project called HYIP. I don't realize that's it's just a ponzi scam. The dumbest thing next is I make an email to the support of that hyip for BTC that's I still doesn't get

Been with the cryptosphere for almost 4-5 years now so I'm not gonna consider myself a noob but I did something earlier this year which I consider the dumbest one (related to cryptocurrency) as far as I can remember. I'm a Waves holder since the beginning and we got an airdrop from an unknown coin at the start of this year. Just because it is a very new coin, I hasten myself and put it in the exchange right away to sell it. Fast forward this month, that specific coin that I sold for pennies became listed to one of the biggest cryptoexchanges today and it's worth quite a fortune today. I'm kicking myself for selling it to such a very low price. Well, I learned something very important from it and I'll make sure that it will never happen again.  ;D

Investing in this hype, I was so dumb, the will come and run away with my BTC, I'm just thinking what those BTC now worth. I don't know if those HYPS are still in the space because what I do now is to use adblocks to block all those advert that use to attract me to their website

I think the possibility of making mistakes is a constant threat in this market because of the immense amount of tokens, passwords, private and public keys that we have to protect, for which I regret that you have suffered this mishap.

Actually I do not think I made too many mistakes, except to have sold a lot of my bitcoins at prices as low as $ 450 or $ 800 last year, thinking that bitcoin could not grow as vigorously as we see now.

Well I have not lost much money but the dumbest thing I did was investing in Genesis Mining lol. I have bought some Monero mining power for around 100$ which could have been 2.5 Moneros at that time if I just had bought them directly instead. Now after a few months I am still struggling to get the minimum payout amount of 0.4 Moneros and I don´t even know if I will ever reach it. I have a 0$ return now an it could be 800$

Ok, i clearly win: i was in the xem ico, got 2.4million xem for 8$ and sold for a couple of 100's. That would have been 500000 now. It doesnt stop though: did the same for lisk ico and i bought 100's of eth for 2$.  I choose the right things but sell too early. I'm the walking example of why you shoild hodl...

dumbest thing idid was to place a buy order higher too much then i lose 0.1eth

Well my dumbest thing i've ever done in crypto happened in 2015 when i bought 2 btc for 460 (230 each) using my dad's paypal and i know i will so much trouble when he discover that i used his paypal to buy a bitcoin and then when going to send 0.01 btc for donation i made a mistake i forgot to put a period to it and now instead of .01 its 01 when i click send, i realized it was 1 btc and we know the once you created a transaction in bitcoin or in other alts you can't cancel it and that's it and good thing that dad didn't kill me but he grounded me for 3 months.

The dumbest thing I did was buy high and sell low.  Well, I guess I still do that every now and then as I picked up some IOTA.  Buy and hold would have been best but sell high and buy low would have been second place.

dumbest thing i did as a noob was investing in ATBcoin scam lol... but i was lucky to cashout without loses in the beginning

my dumbest thing was not to sell scam token ebtc at the right time. could get 5k free money but i was too greedy

I think a lot of people trade by the "buy high, sell low" strategy... That's pretty stupid. And yes, I have done this as well.

Yeah i remember my dumbest thing i did. When me and my cousin trying to invest to a unknown site with a very high profit as young we never think it was a scam we are very excited to convert but in the end of the we lose an been scamed.But we learned our lesson that day.

I fall for the most obvious pump and dump scheme and lost money. This happened more than once. Then, slowly, I started to learn.

The dumbest thing apart of setting stupidly shallow stop orders and having to pay afterwards when stop order had been triggered but price did bounce back immediately , is 1) selling of BTC a year ago 2) selling LTC on 136 level ( this was the only coin from 8-10 i sold off)

My biggest regret was reading about BTC in 2010 and not DOING anything about it! It wasn't for another 5 years before I made my first investment.

Dumbest thing I did was few coin swaps and keeping unsold tokens when there was a clear signs of price decline. Overall loss I accumulated is nearly 3BTC.
But on the other hand I've manage to do a lot of good trades, so I'm ahead. I did a lot of dumb stuff, but Dumbest will be if I didn't learn from.

The dumbest thing that i did when i was noob in crypto is that i sold my first ever token that i received in my first bounty in a small amount , a day later that token got pump up so high , and i am very disappointed in what i did. Because i am first timer then in crypto and curious on how to sell tokens , i did sell all my tokens cheap. And when i ever think of what i did before , all i am gonna do now is to laugh at myself , and say to myself how dumb i am in that day.

The biggest mistake i did is that i did not sell my coins when the price is high that it would triple my profit, but now the price decrease. If i did sell it, it would make me more profit to invest for trading and other mistake i made is investing in a scam currency.

i didn't buy bitcoin when i first heard of it 2010..

Sent 8 btc to a gambling website instead of the Ethereum ICO in 2014.

The dumbest thing that I did in cryptocurrency as a "noob" back then was regretting to invest in something.

Back then, Bitcoin doesn't have any value at all. I think someone was selling a lot of Bitcoins for cash, and I choose to pass. Years later, I started to think like I'm having the dumbest decision in my life not investing in Bitcoin years ago. Same thing with Ethereum when it was still new.

Most of these things aren't mistakes, they are standard results of investing in anything volatile. My dad used to say (before he left this shitty world) that you should never look back from a sale; you made your profit, and whatever future profit is for the guy who bought from you. Which, in turn, is how you made your profit in the first place.

There was a lot of risk involve but when i started posting on this forum there was a post per pay and i posted it with interval but i posted like 15 mins and so on and on that day also i was ban due to spamming and i also learned my lesson that day as of now i only posted 30 minutes per post so i can avoid getting ban again

Was there anyone here that bought a lot of btc a while back and then sold it for profit when it was still very little?  Say like imagine you bought 1000 btc at 1 dollar and sold it off at 3?

Mined about 250 ETH and exchange them for 4.6 BTC

 :(

This time Im keeping my 28 mined XMR for a while  ;D

The dumbest thing I ever did as a noob, was sell some Bitcoin to buy food. Should have let my kids starve.

Try to gamble all of my Doge for the football match that I'm not have a knowledge on it. It's happen when I knew bitcoin for the first time and I was too happy and also greed because I want to earn more and more.
But yes... as you guys can guess , I'm totally loss !

I just happened yesterday when I sold all my ETH (5) at $62X to prepare to buy BTC. I got some profit but just look at the price now :(

Dumbest thing I've ever done as a noob was when I lost 1 btc because I gave my private key to someone who I did not even know few years back. Indeed at that time the price was around $300 only but I still regret it till now. It was a big mistake but it was a lesson as well for a noob. I think many people has their own mistake in this crypto world that made them lost some money. This is a lesson for all newbie to always do some research and reading trusted sources on everything they are going to do in anything related to crypto.

That would be joining faucets and airdrops,as newbie i dont know what to do how to earn btc but now i am focused in bounty hunting.

I sold altcoin at the price I was selling, and only got 0.6 ETH,
but 3 or 5 days after I sold altcoin the altcoin then raced up high, and at that moment I counted,
if I sold that high price, then I could get 2 ETH more, very unfortunate indeed

I did a lot of dumbest thing here in cryptoa especially qhen i was a beginner, and that involves money so in other words i wasted a lot of money in here before. There was a time when i was in a signature campaigns i posted a lot then i never know when will be the cut off because it was weekly and i never know when so i never received my payments then after that i message the manager them he said yo me that the campaign is already over.

Sold all my coins at the absolute lowest point then watched as I couldn't buy back. And never have been able too either. :)


LOL, Yeah I placed a Buy that was supposed to be a sell! Doh that sucks. :)

In which country do you live? 25 ether would be like 18k us dollars, and that could make you a millionaire? Thats some crazy stuff

My dumbest thing I did when I panic selling all of my holding coins. If I hold for a bit and wait maybe finance is no longer a problem  :-[

I don't think that your  mistake is big Because here I made a big mistake what you made , when I was in the starting then I came across a advertisement where it was mentioned that make 5 btc maximum in one bet , since I was not rich perosn that time but still I made adjustment of loan of 0.5 btc ( at 300$/btc ) and betted to make big earnings but with 3-4 bet I lost my all btc that I got from loan , that was really a stupid thing for me because I lost all because of gambling , since I was not aware that that was Gambling , I was thinking that it is only a type of game but unfortunately I lost everything and a big loan was at my head .
Well after that I made Gambling in small amount only for fun purpose only and get into trading seriously after 2 month and made much profit.

My most stupid thing when I was a beginner is investing in ICO without a thorough analysis of the project. So I wanted to get a lot of money in an easy way, but fell for the scammers and lost my money.

You can`t write here in language different from english. Admin can ban you. So don`t make this mistake again.

I think that my act is not so stupid...But when I was a noob I got some coins from Anryze bounty. I saw that price is dumping and in panic sold all. Month after that tokens listed on the exchange and made few X. Sometimes I have panic episodes and want to sell all tokens. Try not to do this :)

We all have made bad dicesions when we first started to use cryptocurrency, and maybe for most of the poeple the biggest mistake they did is they did not save bitcoin up until now, or else they would have became crazy rich from it, i know i personnaly regret not saving my coins, i tried to collect as much bitcoin as i can in one year and then i sold them when the price reached 1000$, soon after that by a couple of months bitcoin started rising like crazy, and at that momnet i relized how impatient i was and i sould've at least saved some, it is not bad to make these mistakes as long as you learn from them and try to avoid mistakes made by others.

That thing is that I didnt know what bitcoin was while my friends getting profit by it and now i know it but it isnt too late i can still invest if the price dump.

This is a very useful topic for reading, I think that it should be fixed in the basis of the site, because beginners often make the same mistakes, and if the first thing they read about the world of the Crypto currency, these are typical errors of people, then there is a very good chance that their acquaintance will succeed and the person will not lose money or invest in a crappy project! Let's fix this topic at the heart of the site!

I have yet to create one but I think for me is not buying btc when I discovered it in around 2010 or 2009 when it was worth nothing or less than $1

it would be even better if many told that they did something that could not be done and what it led to. many users want to cheat in this or that situation, but sometimes what happens. As a result, only problems.

For me it's hard to choose.

Scenario 1: I had some bitcoins $50 worth on my blockchain wallet that I had gathered through faucets after sweating day and night clicking on ads for free satoshis, I lost the money to a ponzi scheme despite clear warning not to get involved.

Scenario 2: Panic sell my bitcoins in January this year because of a mere correction. As a noob, I thought the price would crash and never return.

To trust other people, some even more inexperienced than me... (4chan, bitcointalk, etc). Haha.
I've learnt since then.

Hi Everyone! Well, the dumbest thing I did in crypto was way back 2014. Buying the coin when I saw it in green line, then when it is already in red line or negative line, i sell it. Then when i notice why i didn't have profit, then I was like "oh right, the green line is when the coin is above and negative red when it is been dump." Then i was like "why you so dumb, waste of money." Hahahaha. I don't know it back then, still learning to trade that time. Excitement sometimes make you dumb

Common mistake that most people must be doing when engaging in bitcoin, traders love this when all the hard working FUD spreading members and someone manage to listen to them and sell the coins that could have more value later on.

I joined all the airdrops hoping to get profits from it but i failed,i realized that when one month have passed,bounty is more profitable.

I haven't done anything stupid myself yet (touch wood)...

But some wanted to buy Electroneum on Cryptopia for $0.06. He thought the price field was in USD, but it was actually in BTC. So he bought one ETN coin for around $450 when the real price was around $0.06. You can still see the gigantic spike in the price when you go back all the way to the first day of Electroneum trading on Cryptopia.

At least he made one seller VERY happy.

Agreed. I had known about BTC for a number of years now. Finally decided to buy $2 worth of it in August this year. Could have gotten 5 times my investment if I had just been a bit braver!!

Wow!!! That's a costly mistake. So you lost out on both ETH and BTC. Were you able to recover the funds from the gambling site?

I dont want to remember these things. The dumbest thing was that I have bought Stratis at 700 satoshis. I was new to crypto and really excited about a 100% gain.

On the other side I was really scared about altcoins because BTC was in bull mode. So I decided to sell all my Stratis for a double. Right after my sell it started rallying to 400,000 sats. That really killed me. :(

how can we pin it?

The latest dump shit I did was I sold all my altcoins to buy BTC against segwit2x fork.. unfortunately for me I wasn't aware that segwit2x was cancelled that night..buy the time I checked coinmarketcap all  coins i sold were 25%+ in green..and BTC was dumping..so I put my funds in usdt.. hopping for altcoins to dump...sold 9LTC for 54$ each..damn me..lot of mistake

I spent all of my Litecoin because I thought it was more boring than the others... whoops.

my dumbest thing was simply not getting into bitcoin when i heard about it 6 years ago.  i started to, did a bunch of online research then decided it was too complicated to do and gave up...

I made an investment on doge coin and sold em after a downsing at 50% of the bought value, sick...

I have also done a similar mistake, forgetting to write down the password of a wallet that later would suddenly be worth a lot. However, I was lucky because after hours of trying variations of my usual passwords, suddenly the wallet opened.

A few days ago i decided to sell 500 BNB coins because it was not moving for ages and bitcoin was pumping. After panic selling it turns out that after a few days BNB is now double the price that i sold it for >:( bitcoin on the other hand is rising slowly - should have kept the bnb!

two years ago on Poloniex exchange, i saw a huge red candle on GEMZ cryptocurrency, dropped like 80% of its value,
i though "time to buy !" and i went all in.

when i connected back to poloniex, i knew why the price droppped so low, the currency was about to be delisted ==

then i have to sell 60% lower... and yes i was all in.

i never felt so stupid.

in my defense, i was just a few week trader newbie. never hear about any crypto before.

damn it ! :)

hahahha...bad feeling bro

The dumbest things I did back in the days as Noob was to listen to every dick and harry that spread FUD about the coin I am invested in. Once i hear any particular kind of FUD I always respond immediately think that they were legit info! Crazy days I tell you!

Just yesterday I wanted to sell some of my Bitcoins for ZAR - the BTC/ZAR price was falling due to political reasons and I wanted to capitalize on it by selling high and buying low. I saw the numbers fly past on the exchange and started to panic. In my haste, I fumbled to get a sell order submitted and did not realize I was typing a very low price into the box. So I sold my Bitcoins for about $100 less per Bitcoin than what I could have gotten. Lucikly the price went down far enough so I could buy again and just break even, but I could have made a little had I just focused more.

the most dumbest I've ever done in crypto is the sale of my altcoins and finally reprimand because once a few days the prices have risen. and listened to someone else who was good at investing in it but not.

guys, do not give in to panic, keep coins, they will bring you a fortune, do not make my mistakes when I sell, it grows when I buy on hayah, it falls! it's so stupid.

I tried to earn money in a pump group. of course, as 90% of people joining this shity scammy experience, I lost 80% of my bet.
But it's in doing mistakes that we learn the most :D

So for all newcommers here, never go in a pump group, they will make you believe that you will earn a lot, but generally, the only winners are the owners of the pump group themself, and they will never tell you who they are, of course :p

Good luck for your future investments my friends.

Buying high and selling low. 😂

Dumbest thing is investing in coins I know nothing about, just because the charts look good. ALWAYS do your research before you invest in a project!

Just about every time I sell any coin it skyrockets.  I could hold a coin for a year, with very little profit, sell it, and the next day it triples.  Happens all the time.  If you want to get rich I'l announce what coin I am selling.  Then you buy it.  Guaranteed big profits!  LOL

i got in crypto 7 months ago

lost 0.1 btc in dicegame when btc price was around 3,5kusd -.-
i could still smack my head on a wall -.-

buy high, sell low because i couldnt wait

lesson learned never happened again

 i think i`m just jumping conclusion to sign up with scam ico web emcash.global, thanks god i haven`t send anything but i got to change my password almost on everything oh dear  :'(

when the btc price around $300 I sold it to make cash money and same with most alt coin that I got from giveaway or faucet, I sold them and now I prefer to hold most coin especially cheap coin.

That's funny shit bro. I'm sure a lot of us feel the same way.

I am sorry about your sad story bro but we all commit mistakes so that's okay what's important is you will look for ways to earn crypto who know's you might get more than what you lose.

try to send ETH from my wallet to another wallet when the Ethereum network was stuck.when i try to send etherscan shows that transaction was not success.I try few times.(3 or 4 times.).After few hours etherscan was shown all transactions are on processing.My mind was stuck when i saw it  :-\  :-\.All my ETH goes to another wallet.From that i learnt dont try more and more for same transaction.It will definitely work  ;D

;D ;D

Yesterday I was in doubt, should I sell my BTC for BCH or NEO. I chose NEO, and right after that BCH went up 68% overnight..

Trading coins for coins :/

Hello guys. I dumb my 222k hydro for 50$..how dumb am I?

I am to naive to buy a trading bot from an unkown person and asa you can expect I was fooled LOL
As A noob trader who constantly losing and panicking make me irrational in making decision. That is what i can advice to beginner, do not rely solely on your emotion, be logical and stay careful

My first mistake was that instead of the address of the wallet I inserted the private key everywhere. My second mistake was that I first started dealing with crypto currency, then I stopped. For this time, I think I could earn good money.)))

As a newbie never sell with a loss. You lose only then when you sell with a loss. Of course, if you have choosen shitcoin, maybe then it's better to lose less than more, however, choose the strong coins like NEO, BTC, ETH, ETC, ADA, and a few other, and then u won't need to sell at loss

For me, the dumbest thing I ever did was to follow exactly what youtube pumpers and shillers said.
Specifically, Suppoman...

When I first started out, I didn't know where to turn to so I naturally just started watching a bunch of youtube videos on crypto and ran accross Suppoman.
I got hooked and even paid for his shitty "newsletters".
I would buy whatever he shilled and ended up losing quite a bit of money.
Combine that with the noob habit of panic selling, and I was ready to give up after about 3 months.

Then, I decided to try to stick it out longer and figure out what I was doing wrong so I started educating myself on everything crypto and then branched out into market economics, trade strategies, etc.
I looked long and hard at what I had done wrong and changed those things.

Obviously, things got way better as I started basing my trading choices on informed decisions rather than a paid shill.

(also, his voice is somehow incredibly annoying.  Like a desperate pre pubesant car salesman).

I have almost the same thing happen to you too. I was holding a tokens that i bought in from ICO at that price of 0.5$ each tokens and i have more than 650 tokens. After a few months of holding i sell them all at 3$ each and a 2 weeks later the tokens price goes up to 60$ each.

I understand you. Perhaps some people who are engaged in bounty companies or airdrops, think that they have received garbage and tend to sell it faster on the stock exchange. But! It is possible that they have a project in their hands, as loud as the Efirium of their time. This project in the future can cost thousands of dollars for 1 coin.

I was new in crypto world and I joined trader when I signed up in poloniex, I bought alt without seeing any news and I bought dgb when the price is high, a few months of decreased assets and btc rise in the flat of my money back then I sell dgb, i stupidly affected my friend for ICO investment until now the lost money does not come back

there will be no dumber than selling low and buying high.
this is the most common thing that beginners do.
and i am sad to admit i am one of those people.
but i am better now and never do that.

I bought a ripple when it cost 2.9$ and three months later sold it at price 0.7$. It was a great part of my savings. But I am rather stubborn and intend to create my own wealth due to the cryptocurrency.

Dont know how to call it, if its cause im a noob or an impatient stupid guy, Dumped my Hydro Tokens at 1Sat each. Got phished for two times. And did not know to back up 2fa google authenticator.

I bought an altcoin and I was too eager to gain profit as much as possible, but I know to myself that there is no such thing. until I sold my tokens at low value.

The dumbest things I did was to trust online wallets with my private keys and not to keep my passphrases, thinking my computer would never have unforeseen issues that could jeopardize my wallet. Well, it's these lessons that make us stronger. Fortunately, I was not impacted too hard by these mistakes.

I remember when first started with bitcoin. I invest in some legit project called HYIP. I don't realize that's it's just a ponzi scam. The dumbest thing next is I make an email to the support of that hyip for BTC that's I still doesn't get

I am quite lucky in a way there is some guidance to me from my friend so i did not make any dumb move, the dumbest move i will include is cashing out too early on a coin and see it rising and holding on to a coin watching it drop day by day.

Buying at a really high price, at the height of the bull market because I had missed the dip and thought that the prices would keep growing and I would miss out from not investing in the market and after I bought, the price started going down and I had to sell because I felt so sad seeing the price of my coins going down. i learned my lesson and now i will only buy when prices dip.

So all experience will teach us more carefully in the next future. That is really bad thing that you have done.
I think my suggestion is always learning first doing anything. Always more carefully everytime we do something so we will have another same mistake again.

Well, it was years ago, bitcoin was just starting up. By "just starting up" I mean that it was gaining traction slowly... The value for it was around 200$ in deep-web black markets... Even today, when I remember, I regret my poor decision as I bought some drugs in deep web for 10btc... Which was worth not more than 2k at the time...

That's very unfortunate for the OP. 25 ETH MIA due to this carelessness.

I still consider the dumbest thing that I ever do is when I sold pretty good number of my bitcoin during $800 as I thought that would be the highest price that bitcoin would ever be.

There are a lot of things that i did pretty bad like panic buying and also panic sellinh that is the time that i am newbie and lastly i did was selling my altcoins at wrong time and that altcoins i can get more profits if i wait

I put 5 ethereum on the exchange, and then bought Cardano, Gnosis, NEO on them. Ethereum bought at 300, waited 2 months ethereum grew and my altcoins sagged. I was upset:(

The dumbest thing was to HODL Dogecoin.
Most of the Doges I've acquired were at 100-120 satoshi.

Second was to sell at some 20ish.
I could have had about 0.5 BTC, but I actually got some 0.1 BTC.

Panic selling. Panic selling is the worst thing any noob can ever do. I did it as well, most of us did it as a noob. That thought me well. I guess for better or for worse, you gotta do that mistake once to see how hurting it is. After that you truly learn not to panic and act logically.

did panic sales

For me then as a noob, I invested little amount in bitcoin with doubt as I just wanted to know how well and how true bitcoin was. After that, as I noticed a fall in price, I decided to sell it off and left crypto finally thinking it was all scam. Few years later, my friend that we invested the same amount at that time told me how well it has yielded profit and I regretted not having patient then.

The most stupid mistake I made? I bought coins at the green market at high prices,  in the hope of further growth.

Being to greedy, in panic selling one of my coins and in the next days it pumped to the moon leaving me with regret and pain in my heart.

The day I bought in ED was probably the worst in my life. I bought Viberate for 10 times it´s price because I did not took proper care to count the number of zeroes.

Nearly all of the early adopters in crypto currencies experienced like this too. The worst ones are like throwing their CPU with their bitcoin wallets inside including their keys. I also have some previous reckless experiences but maybe only around $200. I would rather not think about their values now as it would only heart our feelings and regret. We cannot change and turn it back anyways.

Stolen account. Airflame acocunt have been stolen look out !

Dont trade, talk or make some kind of business to this cunt.

More info here:
https://bitcointalk.org/index.php?topic=2347562.msg23913134#msg23913134

in the world, there is 1 % of people who really from the beginning of the appearance of the crypto currency to its peak price held coins. everyone makes mistakes and that's okay. don't worry. I've had that before too. I bought bitcoin for $ 1,300 and sold it for $ 2,100. and then there was a sharp jump

The dumbest thing I did in crypto when I was new to it was to sell the bitcoins that I got as soon as I saw just a little bit of growth in the coin. I thought that there is no way for the price of bitcoin to grow past a couple of dollars at a time which was what led me to sell the coins. Thankfully I got back into the market before the bull started

This is an exceptionally helpful theme for understanding, I surmise that it ought to be settled in the premise of the site, since apprentices regularly commit similar errors, and if the primary thing they read about the universe of the Crypto cash, these are run of the mill blunders of individuals, at that point there is a decent shot that their associate will succeed and the individual won't lose cash or put resources into a crappy venture! How about we settle this point at the core of the site!

Yes, not adorning in Bitcoin each those elderliness since was the dumbest abstraction I've ever had to background. But the morality abstraction is that Altcoins are appear as as beneficial and valuable as Bitcoin is slowly.

Get involved with a ponzi scheme. Thinking that cryptos would make me a millionaire in a short time so in that vein, I ended up losing some of my hard earned cash. Then there was the time where I sold my eth coins a bit too early last year. Then I had to watch the price go up and then buy in at a higher price, in the end making money but not as much money as I would have made if I were just patient and held my coins.

I want to share my story. I filled the airdrop and entered the key in the purse field. My money was taken by fraudsters.

I cannot deny that I was once a noob in the world of cryptocurrency, but that was before and I have learend things from my experience especially the bad ones. What I did before is I panic sell after I saw the market significantly went down in order to prevent losing all my money, and after 1 night the market went up which is 3x more profit if I have not sold my coins in the market. I really regret that moment, because I am so impatient that time if only I had hold all my coins that time I earn huge amount of profit.

Well, maybe dumbest thing what I have ever done is that I havent sell my altcoins and bitcoin when price was All Time High :(.

I hustled for airdrop when airdrop use to yield more returns, i sold them to ethereum instead of investing in project with product and potential to grow i went on to invest in ponzi coin. I lost all my hard earn money to scammers.

I'm laughing now because I was afraid to invest.I really thought it was very dangerous and risky.But then it became common.))We are all human and have mistakes.There's nothing wrong with that.

The fact is that no one is protected from this. Each newcomer made similar mistakes, But as they say, we all need to learn from our mistakes.

The bad thing when I join in Cryptocurrency
It is probably the wrong investment. I first joined and invested:
Buy top and bottom! Unfortunately, my lack of knowledge has made me lose a lot of money.

dumbest thing would be. buy tokens and selling it by  30% plus. then a week later. the price of the token was doubled. it was the shittest moment of my life at the moment.

dumbest for me was selling off my airdrop and bounty reward when im new in this things, but now im hodling everything i recieve

The dumbest thing for me is to invest in mobilego which turned into one of the biggest scams ever. They raised $50 million at ico and now the team is splitting up. Lawsuits incoming!

The most stupid thing is that I invested in coins on a downtrend and lost about 50% of the deposit due to the fact that I did not understand absolutely the movements and manipulations in the market.

my most idiotic thing was essentially not getting into bitcoin when I found out about it 6 years back. I began to, completed a group of online research at that point chose it was excessively muddled, making it impossible to do and surrendered...

All of us made a stupid move like yours, don't be haunted on what happen on your past, you can't really turn back. Instead make it as an inspiration to do more and prove yourself that behind that major move, you can prove that you learn a lesson on that. And just continue stepping forward.

Like an idiot, getting involved in the hype of Bitconnect. Glad I only invested a small amount and got most back before it crashed.
Never join things following just hype.
I've become a lot smarter and wiser since then. A lot ore research is done now.  ;D

We all have made bad dicesions when we first started to use cryptocurrency, and maybe for most of the poeple the biggest mistake they did is they did not save bitcoin up until now, or else they would have became crazy rich from it, i know i personnaly regret not saving my coins, i tried to collect as much bitcoin as i can in one year and then i sold them when the price reached 1000$, soon after that by a couple of months bitcoin started rising like crazy

The dumbest thing I did in my whole cryptocurrency career was when I never believed in bitcoin. I have heard about bitcoin in the early 2011. I saw an advertisement about it and said this might be another internet scam or just a spam. If only I took the time to check it out first and maybe buy some when the price was so low. I could have become a freaking millionaire now. Till this day those memory keeps on haunting me.

well, it was funny actually when the  first time I get into crypto or this forum, all that I have think it's just to earn some money and I wrote some dumb post which is really an awkward and no sense at all then it has been removed because it was  clearly dumb post.

i buy high and sell low. That is my dumbest thing, ,  ;D ;D ;D

maybe the dumbest thing i made in crypto as a noob is to sell all my coins in early stage last year like selling coins at 1 sats in the market and i dont know much about the price history or something i just want to get few satoshi in my wallet and i am happy about that and hell yeah i lost a good coin and hit almost 1 usd price last december. lesson learned from that and i am holding coins now waiting for a good profit :D

We all make mistakes. My biggest mistake was buying coins for a project that I subconsciously knew was going to be joke. But we learn from our mistakes and I make sure I know who and what I'm supporting before getting into it.

the dumbest thing i did is panic selling. cause in just a newbie i think about 2 years ago. when i see the price starts to go down i sell all my altcoin. but after a month the price goes up and up and up. haaaay 😩

It is okay. With that, you were learning that you must write down or copy all of your wallet information next time.
Sometimes the mistakes you done become experience even the dumbest thing.
I was trying to unlock eth address using private key : 0000000000000000000000000000000000000000000000000000000000000000
That is the dumbest thing i have done.  ;D

Similar here. I also did a few panic selling, which cause me lost a lot. I guess you did not really loss until you sell your coin. For me, I bought at a high price when everyone start to enter the crypto market, then I sold a bunch when the price start to fall down. Now I am holding the rest of my coins.

Dumbest thing I did? Well I didnt pay attention on crypto before Soi stopped and for me that was the dumbest move i made.  I cannot say that Im a pro at this but Im pretty sure that Im not the only one. So for all those newbies out there I will suggest to you that keep on reading reliable articles. Study how this thing works and Ill guaranteed you a sweet taste of success.

first of all I condolence you for the incident.

but it's just the past and do not get it over, everyone has a bad past and they can make it so happy when into the future.
forget your 25Ethereum and do it again to find it by trading in cryptocurrency or following a bounty campaign.

Same with me, I already knew crypto 3 years ago but didn't focus on it, I have made 1 bitcoin before and sell it afterwards, i have no idea that it will bloom in the future

I think the dumbest thing for me would have to be selling the bitcoins my friend gifted me when I first got into cryptos. I just wanted the money and it was not even worth much at the time. Then when bitcoin bulled, I finally realized my mistake and by then it was too late. Now I don't sell coins indiscriminately no matter how badly they are doing.

Just yesterday I needed to offer a portion of my Bitcoins for ZAR - the BTC/ZAR cost was falling because of political reasons and I needed to profit by it by offering high and purchasing low. I saw the numbers fly past on the trade and began to freeze. In my flurry, I bobbled to get an offer request submitted and did not understand I was composing a low cost into the crate. So I sold my Bitcoins for about $100 less per Bitcoin than what I could have gotten. Lucikly the cost went down sufficiently far so I could purchase again and simply equal the initial investment, yet I could have made a little had I recently centered more.

Same with me. When I was still a noob I sell my coins because of panic.  I really regretted doing it, if only I hold it longer then I can get more.

I bet most of the newcomers have sold their tokens for a low market value not expecting that its market price will further increase due to the natural market volatility as well as selling due to panic. Many people have experienced the pressure on to sell already or to further hold bounty rewards with hesitations because the increase is not continuous in terms of the price of the token. These are the common mistakes that the new ones are doing.

Am sure most newbies have done one dumb things one way or the other. In my early days in cryptocurrency, I hardly know what bitcoin address is.  Imagine me loosing a whole 1 bitcoin in the quess of converting Perfect Money to bitcoin. I wish I could have that one bitcoin now.

The most important thing is that you learn from your previous mistake. Don't regret on the things that cannot be undone. Always think of the present. All newbies will make a mistake. It just so happen that you are not sure on what you were doing and that is why it happened.

Surely that is your nightmare that continues to haunt.
It's very difficult to forget about that event and it will continue to be remembered by you.

You better forget about 25 Ethereum and now you can do other activities that can get Ethereum back, like trading and bounty.

25 Ethereum and you give it in vain. LOL
It was very sad to hear it and for me the number was very big.
Hopefully this event will not happen again in the future.

I thought that the lowest a coin could go was 1 satoshi so I bought several one satoshi coins thinking I couldnt lose. LOL.

The dumbest thing i did in cryptomarket is selling my coin at cheap price and after i sell it, the price spike up more than x3. I am regret it until not and thats why i am plan to hold my coin for long term

what I can't forget is my experience as a bounty hunter in crypto, not as an investor. at that time I joined a good project but the project was paused for about 2 months. I forgot to join again and finally I was late. I think it's a good project if I follow it to the end of the period and can make hundreds of dollars from there.

wow, there are so many people who are similar to yours. I know someone who has used his private-key in his wallet holding more than 103 Bitcoins. It's a huge number and it's going to haunt him for a long time. So the lesson is to respect the little things and never look down on them.

the stupidest thing I've ever done when I was a newbie is believing in what others say, which has not been proven true. maybe it looks simple, because of this I suffered losses when trading. now I have learned that trusting with others is one mistake

the dumbest thing I've ever done was when I decided to pause in 2014-2015, even though at that time I was able to produce more than 1-2 bitcoins only through ponzi schemes, faucets and a kind of bounty hunter at that time. If you are an old player, you will still remember Stellar Coin (now called Stellar Lumens) which at that time shared coins for free just by sharing on Facebook and Twitter (I think this is the forerunner to the emergence of a bounty campaign today. Sometimes I still regret why at that time I sold bitcoin to buy one tv and personal computer, but it was okay, because maybe without the personal computer I bought at that time, I could not understand the crypto industry even further until now.

I think I've made too many mistakes in this crypto-universe. Perhaps the most painful of all my mistakes was having been invited to invest in bitcoin about six years ago, when cryptocurrencies were not yet well known and their price was very cheap. But unfortunately I did not have enough vision to think it would be profitable, so I simply turned my back on bitcoin. Another of my mistakes was having bought ethers below $5.00, to sell them at $7.00, thinking it was a good profit margin.

Mostly I just followed the hype, I never really checked out the coins to make sure that I was actually investing in something that I am going to believe in, I just invested because others were talking about the coins which led to a lot of bad decisions. Also there are a lot of times where I sold too soon because I did not understand how the market worked yet

And this is my story. I forgot the password from my account in one of the ICO projects and didn't have time to buy their tokens, since they collected a hard cap in a matter of minutes. At the same time, I was very eager to get into this project, studied it for a long time, waited, passed the verification and in the end didn't have time because of my stupidity.

The dumbest thing was when I invested in ICO of Ether Delta a decentralized exchange after a lot of research
and analyzing their WP and a lot of staff. It should be my most secure investment. The next week the team
has disappeared together with the funds forever. I am still wondering how could it happen.

Things would have been more than one dumbest. I sold the coin to the scammer - but there were not so many coins.
The worse thing was when I sold coins under the price of $ 0.65, and for two months this cryptocurrency was at $ 14 (I had over 4300 coins).

The dumbest thing I did in crypto as a noob was to listen to many youtuber and their advices. Also to different websites which were paid by projects to present their ICO as the best. Now I am doing my own researches and technical analysis first before investing in any altcoins or ICO.

I used to make mistakes until now I still remember a lot. I once had an altcoin that really caught my attention in the market, but after I invested the price began to fall, so I panicked and scared. a few weeks later the price started to stabilize then I decided to immediately sell it for fear the price would drop again. after I sold the 5-day auction, the price rose 4x fold from the price I sold. at that time I regretted that I couldn't sleep. but I'm sure of all the mistakes there must be a lesson.

Well i did do the same thing as what you did and i do really think i'm the dumbest man in the planet, luckly i didnt have so much coins on my wallet. Now i knew how important the private key is and so i do learn something from my mistake and be cautious every time transfering coins and write down the address.

The stupidest thing I've done in crypto is invest in bitcoin and ether in January 2018. I should have known more about crypto before making investments, but I just did like everyone else.

At my beginning, I had many doubts about what I am doing. Where are guarantees that I will win, I thought? Now I understand that made the right choice to stay in this area and work in it for some years.

I have bought Bitcoin at 19,9k dollars per coin. It was my hardest mistake during my whole way with crypto currencies. I believed that we will touch 30k USD per bitcoin soon, but than the fall has begun and now we have 4k dollars per bitcoin. :o

Buy whatever coin I saw that people were hyped about lol it was incredibly stupid and I ended up losing a good amount of money in the process but in the end, it turned out that it was just what I needed, it thought me a lot that I need to know about how to invest although now that I think about it I would not have minded learning it some other way

not entering a memo when going to xlm deposit is something that still haunts me to this day. I got nothing and it happened last week when the market was really falling, and I made a fatal mistake.

The Dumbest thing that I ever do in Crypto as a noob person is investing last January and waiting too much to grow my investments this year because it loses 70 percent of my investments and it really make me sad of it. But still I am waiting to this coming months and year to make it recover it's natural value that I invested.

Easily affected, that's the dumbest I've ever done. I suffered a loss of more than 90% because of being affected by Ico's advertisement, I ignored the analysis because I thought there was a lot of interest and would be successful. Finally, I regretted making a decision without consideration.

Buying the tops and following the hodl gang thereafter. My first ever trad e in crypto led to over 90% loss of my investment capital I think every noob makes that mistake of buying the top and not cutting loss when they should.

Spending a lot of time on faucet was my dumbest thing in crypto when i was noob last year. I did that for almost a month in my spare time. It's really not worth the time lol. The other dumb thing i did was i used to believe other people prediction.  I was about to sell most of my portfolio after the price of bitcoin hit above $15k but then i decided to hold mine as people predicted it would continue to growth until $30k.

I sold half of my portfolio and buy long forgotten coin Peepcoin for 1 satoshi, because i heard somewhere,
Peepcoin will be going for rebranding to the new coin Dapps.

So, i bought millions (50 or 100 mln) of Peepcoin, and when it go from 1 satoshi to 2 satoshi - i sold them all, because
i thought, price will go to the 1 satoshi again, before the pump - and i wanted to re-buy for 1 sat and get double.

BUT! When i sold, price goes up and up, and reach maximum of 13 satoshi and never go to 1-2 satoshi again!

This is where i was cursed by myself for greed and stupidity :D

i can't get u  :-[

Buy High Sell Low that is the dumbest thing that most of us did,
F.O.M.O is the reason why we buy some alt-coin while it is being pump and we hold it because we believe that it would recover while it is being dump the we would be eaten by F.U.D so we would sell it at a very low price.