You guys are so gullible. Make an exchange or bank, wait a while till its full of BTC. Take everyone's BTC. Say you got hacked. Refund a little bit to show you care. Stash your anonymous fortune.
I've met Roman a number of times, and for what it's worth, he doesn't strike me as the "steal and run" kind of guy. He's deeply vested in the success of Bitcoin and cares about it for more than financial reasons.
Usually the scammers tend not to be shifty types. You always see the quote from the victim on tv "he was such a nice young fellow, he talked so passionately about his investments"
Too early to judge, but in all seriousness, have you seen the sheer amount of hacked sites holding bitcoins in the last couple years. It's statistically impossible that that many people are that retarded when it comes to security.