in my opinion, things should be forward and more precise, like KYC is not required for this amount ex $9999, more than that a user has to provide his documents and a selfie and write a text on a paper or even a video call, and to avoid not accepting some documents they should list the accpeted documents for different countries with examples of which and how they look, but a lot of casinos make it so vague that people would doubt themselves if they don't accept the documents they provided, i don't trust them at all, sometimes when i make a bet that could get me a huge profit i doubt that i can get my money because of so many cases of users claiming to be discriminated aginst because they won big, online casinos are very sketchy to me.
Most times the way these casinos present themselves makes it really look suspicious and rather than making their terms and conditions clear, they choose to make it very vague because maybe they already have thoughts and plans on scamming their customers if anyone accepts the terms and conditions and at some points, I feel the gambler has nothing guaranteed For them because every rule has been made to favour the house and not the gambler.
If the casino sites are trusted and approved by the government then I have no problem submitting personal information but if the casino site is temporary and weak in terms of security then doing KYC remains a risk.
I think there have also been Some cases with registered casinos who end up scamming their players with kyc and as well as T&C because the players had no control over this.