There is a possibility that they can be asked by their license providers to provide the deposit, winnings, and withdrawal details of their citizens who gamble there, which they can still tax from there. Unless the casino is not regulated, only then can we be rest assured that it's completely free from taxation.
Well in part everything that is about Regulations with respect to crypto and casinos is not having privacy or animation ever again, people at this point should see that it is increasingly difficult for them to do an Activity without a government Monitoring it , it calls my attention that in Nigeria they do this type of things, of course it is something that should not be, at least I do not agree with that, but you have to accept that since the KYC became Mandatory for everyone in the world , this was already coming, I have Always wanted to go to Nigeria , and if I go I will not hesitate to be in a casino , you Always have to know anything that is necessary.
I agree with you that today's regulated casinos will definitely not have Privacy, if we force ourselves about Privacy of course it will be useless with the current situation, except maybe casinos that are decentralized and do not have a head office as their service operations.
The existence of KYC is indeed this kind of thing is certainly a thing that is not strange and it is likely that in the future it will be much stricter to talk about casinos, but even so everything that is done is definitely positive for both users and the government in talking about fair and controlled casinos and reducing crime.