I'm glad you finally got your level 2 verification.  If I were you I would use it to get all of my funds out of Poloniex as fast as possible.

These level 2 verification requests are PURE PROFIT for Poloniex since if Poloniex is legit this means more trading volume.

If they are like most startups I know they would just do 1 minute quick checks to satisfy the nominal requirements and then click "accept". 
If they didn't have enough people they'd hire people off the street for $10/hr to click "accept".  Money, money, money.
So Occam's razor says the feet-dragging on verifications is to avoid withdrawals.

Sorry. Nothing else makes sense.

If anyone has an argument against this line of reasoning please post it. Why aren't Polo just hiring a bunch of unskilled teenagers on contract wages to click "accept". How hard is it?