There are other gambling platforms that didn't get shutdown even though they did not ask for KYC to create an account but they may ask for KYC if a certain gambler is suspicious or a gamble wants to withdraw a huge amount of money. That's what most gambling platform does to avoid money laundering and other breaking rules situation. It would be only less people will gamble if the site does require KYC to create an account just to gamble as some prefer being anonymous that's all.