As you know new exchanges launching every day, you should not join every exchange and that exchange have a good ranking in coinmarketcap that should be joined, I have a bad experience with HITBTC, don't join this exchange because of freezing accounts.
Reviews about HITBTC exchange are very controversial. Some complain about this exchange, others cann't say anything bad. I belong to the second category. This doesn't mean that users cann't have problems on HITBTC exchange. I can't say anything about that. I just didn't have a negative experience with them.
This topic useful, but very few write their history here. Maybe the use of specialized sites? Here, you can get the most complete information about the exchange, which we talked about -
https://revain.org/exchanges/hitbtcBy the way, the exchange is not the highest ratings. I think that's something to think about HITBTC.