Well, it's really unprofessional from their side, they really should have inform everybody about this BEFORE limiting all accounts.
However, my bet is that they didn't do it because they wanted to, but because they were forced to do it by some government bullshit. I thus wouldn't be so pissed off at them, maybe it's not their choice.
I believe that we all need to think about the expediency of our funds on this exchange. Because as time goes on and the lock isn't removed.