The main concern here is not the abused on the faucet but rather to determine what casino doesn’t implement KYC when someone win huge amount. I really don’t know what’s the purpose of this inquiry since most of the casino has gambling license and has a KYC requirements in random basis. A discussion for the potential KYC on a casino that has a clear requirements about is is useless regardless of the amount.
On Trustdice, KYC is just ask when a user is subjected for investigation. I think a user can withdraw without KYC if his game results is not shady.