What are the biggest mistakes you've done with Bitcoin?

[julz]

Stopping my bitcoin miners back in 2010 because of a port conflict with Vmware. 

[NikolaTesla]

I sold 9.5BTC at $2000 yesterday when they were $189...

Those numbers don't seem to add up...

[Matthew N. Wright]

Speaking of mistakes, "Biggest mistakes you've made with bitcoin"  

[Dangolbery]

I sold 9.5BTC at $2000 yesterday when they were $189...

Those numbers don't seem to add up...

He means $1795.5.

People like to round up when talking about their winnings.

[kwoody]

Pre-Ordering bASIC's. Lost nearly $100,000.

[crazy_rabbit]

selling bitcoin?

[crazy_rabbit]

Pre-Ordering bASIC's. Lost nearly $100,000.

Ouch. sorry about that.

[hailstorm]

I bought 7BTC for £50. I then lost about 6 of that on btcjam. Had I just held on to them they would be worth about £800-900.

[Stunna]

Selling cheap :|

[papa_snurf]

I did not buy enough 

[deathcode]

Not selling at $266...

[gollum]

Not shorting at 266$ @ www.icbit.se

[ThorinIceland]

Pre-Ordering bASIC's. Lost nearly $100,000.

Ouch, that stings, my sympathies man.

[glendall]

Getting into mining in late 2010 or so.........for a few days.

What a dumb move in hindsight. Generally leave my PC on all the time,  and had also had a GTX 280 at the time. If I just hit the damn 'start' button before I went to bed at night, could have made a pretty bitcoin.

[tclo]

Not shorting at 266$ @ www.icbit.se

Yes and you know a lot of people did just that and are laughing now (and rolling around in their pile of money). 

[malevolent]

Pre-Ordering bASIC's. Lost nearly $100,000.

You have paid in Bitcoins and it is the value of BTC after the price increase?

[ivanc]

I used Bitcoin 24 (who was the largest exchange for EUR at the time) and had 45,000 EUR worth of BTC + fiat on it. Withdrawals were taking too long.
Then I learnt that it was a single person operation and the owner is a german DJ. Then I found what he posted on stackoverflow, especially this gem: http://stackoverflow.com/questions/15026825/php-mysql-how-to-prevent-two-requests-update

Still waiting for my BTC + fiat, not much hope though as you can expect

[Herodes]

i sent 4.4 btc to the wrong person. after some detective work, i found the phone number of his mother and called her, luckily he was present and returned the coins without any issues.

[Birdy]

Not buying some when I first heard about them.
Tried mining on my normal PC back then, it didn't create coins after a whole day.
Yes, I thought mining them was the big deal and didn't know anything about the 21 mio limit and so on.

-> If I had spent like a day more reading about it, I would have spent a small sum (I guess that would have gained me ~100 BTC).

[Bitconian]

Lost a lot of money

I bought $10,000 when it was at $233

freaked out when it hit $50, and sold everything.


Now it's at $90