That is true and as long as one does not exceed the limit, he can still withdraw his winnings without doing KYC. But if it has crossed the limit, he has to do KYC. But we must remember that each casino has limits that allow someone to withdraw their winnings so it is not surprising that one day, if we win $100, we are immediately asked to do KYC. However, some casinos will not ask us to do KYC because the casino's limit is still higher than the previous casino. When we gamble at a crypto casino, we must always be prepared if one day the casino asks us to do KYC. That's all we can do and if we don't want to do it, we don't have to gamble or use very small money to gamble.
This is a bit confusing here as where these casinos will demand for KYC is we won big amount or if we withdraw big amount?
I think most of the non-KYC casino will not ask for KYC until you initiate a high withdrawal. So if you want to continue playing at those casinos without KYC, there are few options like
1- Do no initiate withdrawal, rather use the winning amount playing more games and enjoy the time
2- Take withdrawal slow and steadily
Even using these precautions, there is no grantee that they won't ask for the KYC. So mentally you should be ready, that at any time they may cease your account and demand for a KYC.