Welcome to the Biggest crypto forum in the world, NO KYC meaning at all? or in any case of questionable activities you will require the account to fill KYC verification and this will the start of the problem?
we have seen so many gambling sites here that do not require KYC upon account creation and depositing but when withdrawal comes then there the requirements come .
They explained above and they have rules to reduce cheating activities. If they have rules and do it correctly, no user or cheater can complain.
A good casino does not pull a KYC card after a winner gets a big win. They do it only if they detect suspicious activities, not only big win. Additionally, when they do it, they have full proof of suspicious activities so mostly they are right.