the thread caught my attention because I thought there were many sites without KYC, or They don't require that identification to operate, but I see that now getting a place like this is almost impossible
You are totally right It's almost impossible to find a crypto casino or a centralized service that will never ask you to verify your identity at some point even if they claim they won't.
Just recently, a new member complained on the scam accusation board about a casino for asking him to pass KYC after winning (obviously) although they have a huge banner on their main page stating that they are a KYC-free casino!
KYC is a mandatory requirement for regulatory compliance in centralized projects, this is why there is no centralized cryptocurrency service that doesn't demand for KYC and that is why it is most important to take note of the level of KYC demand of a project before subscribing to them, so for sure there most ve a point when the site will demand for KYC from you unlike in exchange you must pass through the KYC process before you can carry out any service on the exchange.
But in the casino, their KYC term may be lesser and you are allowed to gamble and withdraw to a limit without KYC, kyc is only demanded when there is a suspected act from the account or you want to withdraw or deposit an amount that is above the limits for non-KYC verified accounts.