My only concern as regard non kyc casinos is that most of them are likely or will likely turn to scam, like I believe some users must have mentioned, scammers know that most gamblers hate kyc, and they might be taking advantage of this to launch non kyc casinos just for the sole purpose of scamming people, by this, my advice would be that gamblers be very careful when choosing a non kyc casino to gamble on.
Having KYC guarantees absolutely nothing. And not only in relation to the casino, but in general. It is enough to recall the FTX exchange as an example of fraud, which is "plastered" on all sides by KYC and regulatory documents. Customer identification was not invented for the safety of customers and their protection from fraud. It was invented to monitor customers and collect taxes from them for every breath.