Don't use Bitrex, you will need to verify your account anyway if you want to withdraw your coins, I've learned this the hard way.
Accepting new members are a bad sign for business, especially crypto trading who relies on their users.
I wouldn't be surprised if they did an exit scam this year

Probably when all the open support tickets in this thread are solved. The list started at ticket number 311022 and is already up to ticket number 674384, and there's new open tickets constantly being added to it.
https://bitcointalk.org/index.php?topic=2465829.0People register to Bittrex to trade, not to open tickets.
Piled up tickets does not have anything to do with service not accepting new member, tickets can actually be solved in just a few hours if their team are effective at handling bulk questions.