I haven't used Hotbit before but seem like it's a legit one. After checking profile about Hotbit on coinmarketcap, I can see that Hotbit trading volume is really high and I don't think an exchange with that high trading volume can be a scam exchange ). It's my opinion about Hotbit after checking few informations about it but I don't know if you like it or not cause as I can see so many guys posted in this topic that they didn't like to use Hotbit because of few reasons.