After a quick check I found they want facebook identification proof this time around. Either that or you have to put your bitcoins on an exchange in their list. I suppose facebook identification's better than passport scans.
So they want whales to put thousands of coins on Poloniex? That's a jolly tempting offer. With a seemingly unliftable withdrawal limit it'll only take them a few months for the honour of getting their own coins back.
One of the exchanges on their list is btc38, which is Chinese and probably won't let you withdraw your bitcoins after you've deposited them, not even at the rate of poloniex's slow drip feed.