Well, that review is a little bit weird.

If, he thinks converting to "USD" is a bad thing then "Duelbits" and another casino who convert the deposit crypto into USD is also getting a red flag by him. One things he doesn't know and understand.

Holding a cryptocurrency for a long time with high volatility is a big risk for casinos since most of the game is based $ pair. Players who are stored in casinos can also get affected, that review should be from game result or withdrawal issue.

IMO, I better to ignore the thread since the review is not relevant.