I think you misunderstood what he said. The member you quoted isn't accusing the casino. He works for the casino and he is the thread starter

What he meant is that only users who are suspected of trying to cheat the casino will be asked to verify their identities.
But the quoted above which I don't understand, how do you determine if a user is a scammer and provide KYC. No one perhaps will say, [Hey! I am a scammer]
There are several ways to spot abusers: same ip, browser fingerprints, identical patterns, use of the same or connected deposit/withdraw addresses...