BITTREX give all LEGACY users the possibility to withdraw their funds until end of year. That would be perfectly fine for me
Perhaps this is what Bittrex is afraid of.
Everyone will take all their holdings (rightly so) and crash the exchange.
Conspiracy theory: Bittrex may be illiquid and not have enough to cover all accounts?
Say it isn't so, Bittrex.
This might be an explanation. Doesn't make sense they still allow trading and depositing but not withdrawals.
It would be ethical to ban deposits and trading from unverified people, but why JUST withdrawals? I can still trade and gain funds but what's the point if I'm just making money for bittrex to keep. If I can't withdraw in a few weeks I might as well make some terrible buys and leave my account with thousands in shitcoins.
Move to Poloniex and get away from this shitshow

Poloniex ain't the greatest either, but I'd get away if I could take my funds with me