You can follow from the Chatbox on poloniex or you can search on twitter "poloniex withdrawal" or "poloniex deposit", there are hundreds of people coins missing.
There is no any support, they are not giving our coins back for the weeks. I don't care about their technical problems, i don't believe that. Coins prices become too high and poloniex doesn't want to give people their coins now.
There can't be an unsolvable technical problem FOR WEEKS i think, i made withdrawals before but now THEY TURNED TO SCAM
STAY AWAY FROM POLONIEX