Poloniex just froze my account for no reason. Cannot trade or withdraw. Support has been unresponsive for 18 hours. Will update.
edit: First email: http://imgur.com/gco1nqi
Was just frozen with zero communication. Nothing. Only thing I can think of is that I use Tor so perhaps logging in with different IPs within a certain period triggered a freeze? The only communication I have so far is a ticket number.