Problem is that Cryptsy "opened" some wallets,but did not reveal total balances of coins.They cant explain why there are no coins in DASH or DOGE wallet if they were not hacked - they probably converted them to BTC and spent to cover exchange expenses.Because all of these shady things,criminal investigation is necessary.

I investigated blockchain for DASH and DOGE and could not find firm evidences about hack

I found DOGE Cryptsy hot wallet address DU4wp32x4kvHHqnhPXJ1LnzsS48LedJvbi with 120 millions of DOGE still in it.