Non-KYC will be something you regret as an operator. You will find you need a large security department to relentlessly deal with scams etc. You'll be astonished at how much scams etc you have to deal with even with KYC.
KYC operators are seen as having more integrity too. Non-KYC are seen as shady operations generally.
I think that a lot more scams happen with KYC casinos. They can use the multi-account excuse. Most of the Non-KYC casinos are DeFi and are much safer than the KYC because of the confiscations done by KYC casinos..