Stupid decision for high rollers to avoid KYC compliance casino since this could make them more secured especially when dealing on their accounts and transactions happening there, hackers cannot easily withdraw especially with huge amount of money since for sure they will be flagged and ask for KYC for verification.
Compare to Non Kyc casino where hackers can easily take out their balance and worse the casino where they trust is a scam and they cannot withdraw their money deposited on scam casino.
therefore as I said in several threads of complaints about KYC issues, I always say there is nothing wrong with doing KYC on gambling that has a license for convenience and security when betting. and doing KYC is not fully complying but only complying with the rules that apply to the gambling platform, and that looks fine.
some people here who have high rollers certainly won't mind doing KYC to comply with applicable regulations.
for gamblers who do not like KYC and are looking for gambling without a license, it will be at their own risk as they have already made their plans and I am sure, gamblers who only gamble in anonymity, they are waiting for much less funds.