"I originally went all in at $7, went out at the same price on the way down, and went back all in at about $3. I've done extensive (bad) trading, and don't have my entire initial position, and far from enough to make me financially independent, but still a substantial amount (more than a year's average net pay, to give a ballpark number).
I'm currently all in."
There might be more than one such guys - but maybe you think about Rick Falkvinge (http://falkvinge.net/2011/05/29/why-im-putting-all-my-saving...)? I thik he bought around $8 or something and sold at $16 when his money doubled, just got scary about the speed - but probably bought back later.
http://www.reddit.com/r/IAmA/comments/1owf4v/im_rick_falkvin...