that is a silly question and even sillier article from a clickbait article that OP is advertising.

obviously the first silliness is that bitcoin is not yet big enough or ready enough to be used as a country's currency but the second silliness which may not be obvious is that there is not even any talks of something like that happening, OP is just trying so hard to relate two unrelated things together and write something about it on his website and gain some traffic to it by advertising it here!

there is no such thing as "bitcoin maximalist". this is a term used by altcoin pumpers who wanted to say their useless coin is best and brand anybody who said otherwise as a "bitcoin maximalist" to prove their coin is good and get it pumped up.

- uselessness
- lack of innovation
- copied code
- flaws
- centralization while claiming to be decentralized
- general lies they tell to pump the coin

basically when you see a project that has copied almost all of its code from another project that means the said project is in fact a shitcoin.

that is a wrong question to ask!
the real question is asked in a comparative way. meaning the question is whether bitcoin mining is viable with the equipment you have access to and the electricity cost that you are exposed to. otherwise it is always going to be viable and very profitable to mine bitcoin in general that is why there is always a huge amount of computing power (hashrate) mining bitcoin no matter what the price  is.

that is only your choice based on your strategy, that doesn't mean it is the right move for everyone!

the main strategy that majority of traders use (which you can verify simply by looking at volumes and comparing alt/USD versus alt/BTC volumes) is to always go back to bitcoin because bitcoin for everyone is the long term investment which they know is going to go up in long term. so what they do is that for example they invest $1000 in bitcoin (get ~0.2BTC) and then use that to trade and in the end the goal is to turn that 0.2 into 0.5 then 1 then 2,... so that in the future when bitcoin reaches mass adoption and is $1 million they already have a big stash of bitcoins by only investing $1000.

in other words it only works if you expect the market to go down. if price rises (which is the usual case with BITCOIN price only) you will miss out and have to buy a much smaller amount with the same USD amount. like what we had this month where people were waiting around and price jumped up and now is 75% above the bottom where they sold!

that is mainly because majority of people don't trade in USD, they trade in BTC which is why whenever bitcoin price is rising they start dumping their altcoins for bitcoin to go back to bitcoin market with BTC in hand. but since this is not a 100% dump the price against BTC decreases and their price against USD increases slightly.

WARNING
none of these are US dollar so all these names are WRONG. they are all Tether or USDT which is a very risky altcoin and when you go to Tether instead of fiat (USD) then you are taking an additional HUGE RISK.

for the millionth time, there is no difference between ICO and IEO or any new name they will soon come up with. they are all the same and when you invest in them you are actually gambling with your money at a high risk because the odds of "winning that bet" are strongly against you.
the only difference IEOs have is the fact that they can be dumped a lot easier and faster because they are already supported by the exchanges so the risks of losing money is even higher.

the problem is that he wants to BUY bitcoin with Paypal not sell to it. which means the seller (can be trusted member here) is giving him an irreversible money (ie bitcoin) while him without any prior history is giving the seller an easily reversible money (ie. Paypal). i don't think anybody is going to go for that.

nobody is going to leave Bitfinex (sadly), they are only temporarily staying away before they go back to that horrible place and continue what they were doing before. otherwise Bitfinex has been shady for a very long time and the more they used Tether the worst they got.
i still haven't forgotten 2016 when Bitfinex was hacked and every topic was about their insolvency and yet everyone went back and continued using them after a while!!!

actually people are misunderstanding things (mostly because of FUD) when it comes to Tether and bitcoin price. the fact is if (and when) tether disappears bitcoin price will drop (as we see recently with the problems that Bitfinex is facing, and as we saw in 2016 when Bitfinex got hacked) but it won't be because bitcoin relies on Tether or its price is rising because of that (both of these are FUD). the only reason why price drops is because of the drama that it causes in the market and that creates panic and people sell when struck by fear in this market.

i disagree.
you are saying it yourself, China ban of ICOs and that has literary nothing to do with bitcoin! 90% of the ICOs or maybe even more, are being invested in using Ethereum not bitcoin. so banning ICO only affects ETH price if anything.
besides bitcoin was in a bubble when it reached $20k and it needed to burst and come down, maybe not this much (80%) but it needed to come down nonetheless. so that is another reason why you can't say the drop was because of China

there is no difference between ICO and IEO and even STO. they are all the same scam so saying which one you choose between these two doesn't make any sense at all because of that.

as for where i invest my money, i prefer to invest it in something i can analyze which means it should have some history so that i can look at it and see how it was performing so far, find signals, figure out its status,... this basically means i only invest in altcoins that are already listed on exchanges and have been trading for some time so that i can figure out whether it is a good short term investment (is there a pump coming) or not.

bitcoin has a 10 year history and if you check its charts you can see that this type of "rollercoaster" ride where price shoots up to the moon (a bubble) then drops down (the bubble burst) has been happening from the very first days when bitcoin was listed on the very first exchange platform.

so to answer your question, the reason is the same as when it decreased after reaching $0.1 and it is the same as when it decreased after reaching $1, ... after $2... after $10.... after $100, ... after $200... after $1200, after $20,000 and in the future the same reason why it is going to decrease after reaching $100,000, and so on.

it depends on hundreds of different things! and it can be in a range from $1 to thousands of dollars.

for example you can do what 90% of the market is doing and copy another shitcoin and change its name to release a "new" one. that doesn't cost anything since you just copied another developer's code. this is happening these days in form of ICO/IEO/...
but on the contrary if you want to create an actually good project with some innovation then it takes time for you to code it and that development process is a time you are spending as a "developer" so it costs you to code. depending on how much you invest your time it can cost differently.

the above is the major costs in my opinion.
but then it comes the advertisement. a good project doesn't really need advertisement so your cost if you have a good project is nearly zero. for example Satoshi never spent any dime on advertising bitcoin!
but if it is a shitcoin specially a shitty ICO token then you will have to spend money advertising it so that you can fool people into buying your crap so that you can dump it and make money. in which case the cost increases based on how much you want to advertise the project. it can be in form of banner ads on forums, websites or ad networks, it can be signature campaigns, bounty campaigns for fools,... and each have different cost.

when we are in the early days of a reversal which is basically the day price hits the bottom (in this case the day price reached $3100ish) you can say that there is a "possibility" but when we already see the two major periods of accumulation and the initial reversal then there is no "possibility" anymore, the reversal has happened!
and right now we have seen both the accumulation phase (between $3.1k and $4.2k) and the breakout and the start of the rise when price reached $5500.

it wasn't exactly like that.
most of the price rise in 2017 was because of two major positive news. first one was the mass adoption of bitcoin by a couple of countries such as Japan as a currency and second was the end of the scaling debate that was keeping bitcoin back for over 4 years.
of course FOMO was a part of the market like it always is but it wasn't the main reason, not even the biggest one. and it mainly happened near the end which was also because of being in uncharted waters of $10k+ range that the rise happened smooth and fast.
same with the drop, it wasn't all because of "FUD". mainly it was the bubble burst, specially the early stages and near the end the FUD was the dominant factor pushing the price below the realistic values.

ps. don't confuse what happened to bitcoin with all the "cryptos" the altcoins were mainly pump and dumps and still are.

i rarely visit Youtube to learn about bitcoin myself but since a lot of others do it, that can be a good service to offer people.

these are the topics i would cover in that order:
1. a simple and short explanation of what bitcoin is as a decentralized currency while avoiding any kind of technical explanation or even mention of mining and things like that. stick to use cases and how to use.
2. a more detailed explanation of how bitcoin works, some hits at mining, general information about cryptography and how it secures bitcoin,...
3. explanation of bitcoin characteristics and mostly differences of it compared to traditional currencies and payment systems (reading the first page of Satoshi's paper can help with this)
4. now we start with "how to use bitcoin.
4.1. what is a wallet, what it holds (private keys not coins)
4.2. what are different types of wallets and how to choose one.
4.3. general security guidelines to keep a wallet safe.
4.4. explanation of fees (eg. it is calculated based on size not amount) in two steps: a) using the wallet to set the fee/byte b) using other tools if your wallet isn't doing a good job
4.5. maybe cover LN wallets too
5. some general information about how to buy bitcoin and the risks of trusting centralized exchanges
6. introduction of some merchants and basically what you could buy with bitcoin.
7+. depending on your own knowledge of bitcoin and interest of your audience you can always cover more advanced topics too. eg. cryptography, bitcoin script language,...

there is no such thing as "blockchain accounts", the concept of account doesn't even exist in bitcoin.

these aren't "wallets" these are addresses and almost all of them belong to services which are mainly exchanges.
those individuals who own large amounts of bitcoin rarely hold them in one place because that can make them a target.

i prefer a diversification of assets as my "store of value" approach (eg. gold+bitcoin+stocks+investing in businesses+sometimes even real estate).
fiat is for day to day usage as we rely on it fully still.
bitcoin is for a decentralized currency (so i can use it however i want with a great privacy) and an investment that gives me a very good profit but with a higher risk than usual.

i don't think they can come back from their death, no matter how much they try. all the issues that pushed them aside and made it so that they were replaced by other exchanges still exist if not grown more sever.

besides that is how this world have always worked. the centralized altcoin exchanges have always had an expiration time and it didn't start with Poloniex either. there were others before it too. like Cryptsy which was huge before they died, then Polo came along, then was replaced by Bittrex and then as they scammed they got replaced by Binance and soon enough Binance will be replaced by another exchange and the chain goes on.

that is a big load of nonsense. you can NOT regulate ANY cryptocurrency as long as the cryptocurrency is decentralized. it doesn't matter if they are anonymity oriented coins like Monero or non anonymity oriented like bitcoin. it doesn't matter how much they try and push for it, they will never be able to do it.

the only thing they can do is force exchanges and other centralized services like payment processors, web wallets, centralized merchants,... to enforce some silly rules nothing more.

unlike in the movies, in real life it is not easy to "fake" your death specially when the authorities are involved and you would be breaking the law which is a punishable act. besides, this news is already too old and in this case we are talking about bitcoin and similar cryptocurrencies which have transparent blockchains which means if the coins move it will become obvious that they had access to the keys and were lying about it. that has not happened yet.