Same thing happened to me last night that everyone else is experiencing.
My HUNCH: They are being forced to comply with Homeland Security (whatever that entails).
My ADVICE: Let's chill for awhile and see what happens. I can't imagine Bittrex would blow such a potentially profitable business by just being dickheads. Let's cut them some slack for awhile and see where this goes.
No I'm not a shill for Bittrex, I'm just trying to follow the logic trail here.