I believe they have strong anti cheat protection through the user ID-s in the site and their way of accessing the site,the mobile,the desktop,what browser do they use and what IP and things like that who make sure people don't cheat with multi accounting.
KYC isn't asked only for preventing users from cheating.
Many casinos (or other crypto-related services like exchanges) force users to pass KYC due to complying with regulatory rules.
Of course, I agree with you and I don't think they will ever implement KYC.
I hope you're right. Requiring KYC is a double-edged sword. While it can prevent scammers and cheaters from using the service, it can also limit the freedom of legitimate users as well. I hope that FreeBitcoin has thought things through very carefully, and I hope that they decide in favor of anonymity of players.