You are indeed right. Anonymity does not somehow a big issue at the moment since most of the casinos are actually requiring KYC most especially for big time players. Although there might be some few gambling casinos who are not into KYC verification, but I believe their system will definitely be updated and will require KYC sooner because that’s what the government requires them to do so.
However, there’s still some factors that we still become anonymous from others, but not from the casinos personal staffs. Maybe let’s just accept the reality that KYC will be compulsory in all centralized casinos all over the world. This is not only made out from the government wanting to control everything, but also for the sake of gamblers security and protection.
That's the sad reality as we push the government regulations, we are being forced to follow the KYC rules. Most of the casinos now are asking for KYC, but some are still not and they will only ask for KYC if they see some irregularities with your account. Somehow, KYC is indeed for the security purposes of both parties, let's just hope that secure our data with a highest priority or else, hackers might get our details.
Most of these casino just do all these because of the government rules that are tied to them operating their business. These casino are now implementing all these to avoid be sanctioned of money laundering law because most of the users deem their site to be a perfect spot for huge deposit and withdrawal which can cause lots of attention so that's why KYC is been called upon