Are you not sure about the KYC documents because you mentioned you may require?
There are so many bitcoin sites are available to play without disclosing identity then why we need to choose this site? If you remove this KYC verification feature then you can attract more players to your site. You need to think about other ways to restrict bonus abusers.
I don't trust that any casinos can keep our personal information safe forever.
I agree that it would be possible to simplify the ability to use your site if you come up with other ways of identifying yourself and countering abuse, and not the usual KYC in such cases.
Of course, the number of players will increase immediately. I respect a casino that has been operating for over 14 years and I understand that it is very difficult to modify KYC so that you do not need to scan documents, photos, videos, etc. Ya! It is very difficult.
But maybe the devs will come up with something interesting in this part. Of course, if there is a desire to greatly increase the number of users, this should be done. Because many people want to remain anonymous or partial anonymity for various reasons, primarily personal and not because of some kind of fraudulent interests.