KYC and document verification is a natural and mandatory part of online gambling and the routine around it is very safe on officially licensed gambling sites and operators will lose their license if they do not comply with the required regulations.
and KYC charging is important whether small or big players and to prevent bonus abuse and crime, and also to check underage gambling and so on.
There’s no KYC in Rollbit as far as I know and its not mandatory in some gambling site where you can still gamble even without KYC, and Rollbit is the best example for that.
I don’t know if big players are being asked for a KYC but for sure if that player violate or did something suspicious against the rule of this gambling site, proper investigation will be made and that player have the right to defend itself and prove that his money is come from a clean source, this is the purpose of KYC anyway, to detect cheaters and frauds.
Usually gambling sites that do not apply KYC if there is abuse it will be frozen and later if the account owner complains then the development will ask KYC to continue that this is not a violation but this is a system where it has become a rule like it or not now or In the future, even small players will be asked to do it, but I hope that the anonymous will stay in the casino game for a long time.
Rollbit hasn't talked about this yet, but I don't know if the rules in the future will follow in the footsteps of roobet or not, it's clear that this is a legal compliance that cannot be violated.