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.
Indeed KYC does not provide us with 100% security in gambling or trading, but in this case, KYC becomes a wall that protects users or platforms from any possibility of illegal activities that harm all parties, I personally see KYC is not a problem that we should avoid, engven though we will provide our identity data but usually third parties will store the data safely, because after all the kyc is based on compliance with regulations applied by the relevant authorities.
Btw I don't see what happened to FTX as an example of fraud, because as far as I know FTX is a platform that experienced bankruptcy and we cannot equate it with fraud, even if you read the current news related to FTX, then you will find if they start making payments for compensation for users who lost assets in FTX.