Yes thats what suspicious casino will do, but at the end they will say they are just security conscious that's why they implemented strict kyc. After the kyc have been implemented, they will make it strick so that most people won't be able to meet up with their kyc requirements, which at the end they won't be able to make withdrawal from the casino site and the money belongs to the site.
Also I won't really recommend anybody to use any casino site with kyc, because anything can happen to your data.
If the casino wants to do that, it's best to explain up front by putting it on the rules page so that people who read the rules can know what they should and shouldn't do when gambling at that casino. The casino must be transparent to its members so as not to arouse suspicion. That's why we must be careful in choosing a casino site, especially one that uses kyc because we don't know what they can do with our data.
Who would of course want a KYC casino? We sure know the risks entailed with it so I don't think there's someone who will happily choose and bet to a casino that will ask KYC. I for one wanted a non-KYC casino but I maintain my deposits little and I prefer not to go big in case they will suddenly freeze it.
Yes, there must be people who will verify at a casino that implements kyc, especially if those people can find a trusted casino that can make them feel safe playing at that casino. I also still use non-kyc casinos or if they implemented kyc they would have limits for small gamblers like me so I don't have to do kyc.
That's why i always avoid the place that was forcing its users to verify identity. Forcing identity means that casino didn't wanna play fair. They want money to come but they didn't want money to leave from their platforms. Remember that since the owner hodl your money and you can do nothing for that. People will always prefer for their identity not to be revealed or owned by casino.
For trusted casinos, they will not force their will on their members because the casino knows if they keep doing that, maybe their members will move to another casino. We also have the option to play at the other casino we want so if the casino wants kyc, we can look for other casinos.