If a person wants to be anonymous, he will be. He will hide IP addresses, will use different wallets so that it is not possible to track where he withdraws money. But the question is, why does he need anonymity at all?
Anonymity in the casino is necessary in order to hide the recipient of a large win. People don't like to show their earnings. That's why Monero is so popular in casinos. But anonymity is not combined with regulation. If the casino has a license, then KYC is needed. As I know Clodbet does not accept Monero.