I know that in casinos, there’s not much difference between rates of winning because it’s random but hypothetically which one is more important for you? Profit or Privacy?
A lot of people gamble in hopes of winning big. Given that option, it wouldn't be surprising to have lots of people opt in to provide details to complete the KYC process as long as they could win big.
I read a reply earlier on the thread about the ability to withdraw your funds and i thought he made a good point. The ability to withdraw whatever funds you win safely without any hassle involved would largely sway people on the casino to play with.
It may surprise you on the number of people that are very willing to submit whatever documents that's required in hopes of winning some money. With folks like that, it's profit over privacy.