I dont know why this type of attack on poloniex exchange, i would have giving such rumor some considerations if not that i am a poloniex user; what i also note about this is that almost all of this accusations are coming from newbie accounts which makes the whole allegation useless.
Poloniex deposit and withdrawals are working.
sorry sir, i am not attack poloniex exchange, and i am also old user of them. however, it's first time happen to me, i will prove it, please look my post photo. around four days my coin cannot withdraw from poloniex service.
http://i4.piimg.com/1949/82315ba43536752b.pnghttp://i4.piimg.com/1949/4c34a61da1969d53.pngsorry you unhappy in this time,
maybe it's problem is i off the TWO-FACTOR AUTHENTICATION (2FA), i open 2FA later, everything is fine. coins can sent to my pocket address ZEC, but now problem is i got two tickets haven't reply me and finish withdraw.