If they keep providing instant withdrawals and no KYC they won't have problem attracting players. The only thing I'd worry about is a possible money laundering accusations towards the casino. That's why casinos often restrict people from certain countries like the US because the US likes to sue businesses that allow Americans to play without KYC. Sooner or later they will start blocking your site and trying to get to you. For now it's fine because you don't have enough money coming through to show up on their radar.
But actually KYC is also very important and needed by casinos to prevent money laundering or accusations of money laundering.
As long as casinos enforce KYC, there is less possibility of money laundering activities. Even the US cannot block or sue a casino because casinos are already established and protected by the license used.
This is a difficult choice for casinos because they have to have a lot of customers and try to always attract customers, but on the other hand gamblers also have important points to prioritize when choosing a casino.
This is a little difficult for most gamblers and gamblers have to really look for a casino with such specifications in order to be able to gamble anonymously and feel comfortable or safe.
So far there are only a few casinos that I have found with the specifications we want.