No KYC casino site is good but in most cases at the end KYC is still required when there is an issue. I am not disputing the fact that you can't operate without KYC but I am saying is that, at the beginning you might remove KYC to create impression and attract customers but at time goes when problems arise and can solve without KYC what will you do? You are not the first to operate this. We have seen it in other places as well. And from your explanation, the site performs multiple jobs at a time. One can play bet and also use it for exchange.
I don't think there is 100% no KYC casino because problem will always arise that could make the team to look for ways to resolve them buy asking players of some information that can be categorically be seen as KYC verification. In this case this might make players to feel like something is wrong with the casino team. Most money launders and fraudsters like to use non KYC casinos and companies where they can be less exposed to the public through any attempt of asking them to submit documents for KYC.
I think a lot depends on sum of money. If player win a big some of money there is no reason to pass KYC procedures.
Small soms of money does not attract attention. But big sums always attract a lot of intention including the attention of state authorities and tax organizations.