They will ask KYC once you try to withdraw a considerable amount of profits though, that's almost always like that.
Yeah, about the bolded part. If someone registers and deposits a few mil right off the bat, it might definitely raise some eyebrows.
Each casino has its own risk assessments but chances are the licensed ones have audits.
True that. Reminds me of a case when someone got denied her jackpot winnings just last month in the US. Casino gave an excuse that she was blacklisted and trespassed their property when previously they were silent whenever she played and lost.