Not completely wrong if you ask me, KYC doesn't just benefit the casinos alone, it also benefits the gamblers in general since it helps create a safe gambling environment for all, though i understand that this would or might be hard to believe for some, most especially for those who are head bent on never seeing the brighter side of KYC verification, but only choose to put their focus on their own personal interest.
Which world are you living in? Anyone with a brain would choose to put their own personal interest first over anything else. Also, there is no bright side of KYC verification and your example to prove your point is downright silly.
Only extremely dumb scammers try to scam others after submitting KYC while the majority obviously use their brains and try their best to stay anonymous.