That's a great choice op that for now you should prefer the smaller players in your casino/ sites than choosing bog whales in your sites. And about the KYC some big players or gamblers choose always anonymous and did not give some private information about them and we can not force them to do that cause the privacy of the user is better to hide.
Yeah most especially now that the casino is just building up with new community members small players will give more feedback easily than the whales since the whale's players only come for the winning, most small players just play for fun that way they can easily point out any shortfall in the system that need to be fixed by the team.
Whales that come naturally play on the site. It is first more important to establish a good foundation and to gain a solid reputation on the forum. That can take a while, but it can also happen very quickly. Players will monitor all topics to make sure there are no issues with the site. If payouts are processed quickly without any problems and accounts are not closed, you can build a solid foundation with a good reputation fairly quickly. And also important to continue to communicate with customers about certain comments or comments, that is always appreciated on the forum.