Even if you are playing in anonymous gambling site, this term does exist for a reason.
One thing you should aware, KYC is becoming a common thing lately so you should be ready if KYC will be a mandatory thing in all online services in the upcoming years.
The meaning of this option is clear: no site wants to receive money from a stolen credit card and subsequently face charges of laundering the stolen funds. The problem is that most casinos/bookmakers use this option only to delay/or completely cancel payments to players who have been successful.
Well said!
Generally, if the KYC stuff was meant to protects players' funds, it would be a different story. But all too often it goes without any reason or rationality that you find yourself in an ugly position with a bookie. Sometimes they don't even accept official documents. It's ridiculous, and the reason usually is NOT to protect players' funds, but to delay and delay.