This is a never ending discussion in many topics. I wouldn’t say that KYC is always useless as in some cases I can get why casinos want to check it (especially if you want to withdraw a big amount). But a lot of casinos are trending to asking KYC so we just need to adapt and live it.
Well, there will be a never ending discussion and argument about KYC because people have different view about it. One side understand the need for KYC while the other side wanted to tell the importance of privacy. For my part, I always think that casino implement KYC because it is needed to have a smooth business transaction since the authority requires it and the casino being a business needs to comply.
KYC has also had its good side like in times when a person's account is hacked, accidentally deleted his 2fa authentication apps, and any instances that the account experiences a problem and needs proof of ownership.
People need to move on to discussion like this since it becoming a irrelevant topic for a casino that implemented this for long time so there's no further more need to discuss regarding to this KYC thing especially if they know already the answer regarding on that implementation. Seriously if they don't like to play on KYC compliant casino then they should better go to other one since its still not good for them to keep discussing this and try to convince the community regarding to its elimination if this is what they like since the law dictate this to them to implement to their platform.
People should always look for the brighter side about KYC ask to them since it will make their account more secure since no one can actually stole their money here especially if those people trying to move up some funds illegally to our account or something like what you mentioned on your post.