Damn, we are in for some really tough times!
Imagine your account gets frozen for some 4 - 5 transactions back which you even have no idea about. And from the look of things, these exchanges are going to normalize this kind of behavior, making it so hard to transact outside their exchange (making deposits into and withdrawals out of… I know they will glad welcome only "internal transfers")
I had a problem with funds from eXch at a local exchange, but after a short communication, I got a refund. Yes, the reason for closing the order and freezing the funds is that part of the coins in my address are linked to the 'hack'. I think I also warned here about the potential risk.