@Nat, that's some interesting tinfoil hat thinking.
If we consider these 2 assumptions, then their actions over the past 2 months seem very reasonable.
1) They lost a lot of btc to hackers, theft or had it confiscated. Whatever happened, its not there.
2) They still hold alot of Altcoins,
The problem: How can our exchange convert our huge alt holdings into bitcoin so we have a shot at survival?
Logically, to remain liquid you would want to quickly implement policies or actions that would cause people to trade their btc to buy your alts at a premium price.
The perfect way to do this would be to frustrate withdrawals of bitcoin while altcoin withdrawals work. Then, simultaneously "lock" lots of accounts with btc in the name of KYC, and add a hefty withdrawal tax to encourage people to keep coins on the exchange.
We will just have to sit and watch this play out. I suggest everyone download their Uno trade/deposit and withdraw history from Cryptsy. It could could in useful later if the exchange disappears. I hope cryptsy doesn't go away, but if it does be ready.
If 19k Un were disappeared on cryptsy, we could be in for a fun time. We saw long months long dumping of Uno after the Coin-ex theft, and was only like 8k Uno.