Well, then the question is, those gambling sites that do not require kyc right now, how long will they continue to operate without requiring kyc from its customers?, I personally think we shouldn't be so hard on gambling site that ask their customers for kyc verification, this is due to several reasons which sometimes, we the users fail to understand, alot of bad eggs in our society today use all means available to launder money and commit all sort of evil crimes, this set of individuals won't hesitate to make use of a gambling site to perpetrate their evil act if they find the opportunity, and most gambling sites requiring kyc verification from their customers today are only doing so to protect themselves and their customers from such kind of people, because at the end of it all, what ever happens or affects the gambling site affects the customers who have their money stored in the site too.
If you ask me how long will they continue without asking KYC to their customers, I do not have the right answer because that will depend on each casino. But the casino that wants to give the best services will still do this while they can also negotiate with the gambling providers not too strict to their customers.
If we talk about laundering money, we talk about a lot of money that will be used to gamble and for that, the casino can ask them about the funds, where the money comes from, etc. The casino can also ask them to verify those people to know their customers who use big money.