I just checked and login to my account and my account is fine and not disabled. I guess Bittrex only targeting some people? Because my account there is not have coins left in my wallet.
A bit shaddy though, it's better to move your coins from there.
Shady? I don't think so. They are basically cleaning up their system and enhancing their security measures after the recent Binance hack which is great. I received an email from them asking me to submit KYC which I did not complete yet.
However, I do not like the manner in which they are forcing KYC down our throats.