Always be careful with no KYC casinos from Curacao. They are required to do KYC after a total of 2k deposit. So it might look good from the beginning with license and all.
For those anonymous casinos that doesn't require any KYC, it's important to check up the owners. Are they legitimate? What have they done before? There are only around 20 serious crypto casinos without any KYC requirement according to my research the last 12 months.
KYC or no KYC what casinos are after is their profit. Have you ever wondered why some casinos would start as a KYC free casino and after a while when members have deposited their funds and have started playing games and winning and when it is due withdrawal they tell them to do KYC and if the gambler refuses, they block or ban them permanently from accessing their account. In some cases if the KYC details are suspected to be from nations that have restrictions on gambling, they take advantage of it to penalise the gambler by suspending their account while in some cases they take the assets of the gambler.
One of the major challenges of KYC I think is the issue of privacy. When ones privacy is compromised, their is every possibility that their details would be used against or possibly do some shady that they have no knowledge about. It is a personal choice to go for a KYC or KYC free casino.