That's an alarming thing tbh, for just a cent people are willing to provide a dangerous stuff here. I think there should be more verification process other than KYC that can implement more stricter rules towards account but if that happens I think users are the one that will elusive for such a site or a casino.
Some people (especially those new to crypto) are not aware that is dangerous to do a full KYC. For a casino it makes a lot more sense but even then you should only do that to well established and reputable casinos that have a good track record.