As you see what happened with the last 2 IEOs on Bittrex, I decided to quit Bittrex and never comeback. Since 2018 I realize that Bittrex is not a good exchange anymore. Low volume, low liquidity, supper slow KYC process and customer support. They did like they were trying to be the worst exchange.
Maybe if you are finding the best exchange in the market, you should consider the number of users that it have, sometimes, low volume, low liquidity doesn't tell whether an exchange is good or bad, but the number of traders that are using it, what matters is the traffic and with these people, you can assure a profit.