On one hand I feel sorry for Cloubet, who has no choice but to perform all these AML/KYC measures, as is their requirement. But on the other hand, I think it is truly unfair to freeze player accounts without any actual justification, other than the standard lines we keep seeing casinos do to players.
For me it is not fair because this was done only during withdrawal, whereby true AML/KYC measures by companies and payment processors happen AT the moment of transaction, which in casino cases is when users sign up. IF you must do kyc, it must be at account creation. This solves all these issues for you and for players.
That's just how the casino business is. I've been gambling online for over 12 years and through the hundreds of websites that I've tried out I've never had any issues with signing up and depositing money, however when I want to withdraw I've always had to "activate" my account by sending in proper documentations. First off, I knew this when I got into it as it does make sense. You are sending them your money and once they've received it, it is their money. If you truly want a decentralized experience where you can keep yourself anonymous then you should never play at a regular casino. It's not that hard after all.