There may still be casinos that don't ask their users to do KYC if they don't withdraw big winnings and allow them to do so. And I think so far, the casinos are not very strict in implementing KYC to their users. Maybe they'll ask random users for KYC or maybe because they suspect an account is suspected of cheating or something.
But if the user doesn't want to submit any paperwork to the casino, maybe they should be able to find a less KYC-minded casino. But he also has to pay attention to how much money he uses to play gambling.
Yes you are right about that mate every suspicious account they do some action and some of them been ask for KYC in order to prove that they are cheating or not. And some of them the withdraw will be hold until the user of the account had been found out that they are doing good. Then they're able to withdraw but if not then they will be an issue of their withdrawal or else they are not gonna make a withdrawal anymore.
Therefore, we must be careful when playing gambling so as not to violate the rules written in the casino. Maybe the rules in one casino will be different from other casinos, so we need to avoid suspicion from the casino. If we don't want to send documents, we must be very careful about using the money for gambling, especially if new members have just registered at a trusted casino. The casino could just keep an eye on each new member and make sure they don't try to do things that might make the casino suspicious. And what's important is that we don't cross the attractiveness limit for new members so that we can continue to play gambling comfortably and withdraw our winnings.