I'm still wondering whether they could have taken a big BTC stash from their exchange, shorted BTC in another exchange, sold coins, made a self-fullfiling prophecy / market manipulation in absence of serious buying support and then locked profits. But if they had done so, they'd still have the BTCs (and the profit). So what the hell have they done with the BTCs?
Uhhh...it's actually the opposite case that's dangerous for a financial institution: a hot trader, turned hot-headed, makes a big bet that goes tragically wrong. Then, you'd have a fractional-reserve situation.
You think it can't happen because professionals? Allow me to introduce you to
https://en.wikipedia.org/wiki/Nick_Leeson#CareerThat said, I have no evidence that the Cryptsy fellas did anything like Mr. Leeson's race to the top of Bankruptcy Mountain. Like you, I'm just palavering.