[Judge_S]

It happens because the password that people use to sign up to the forums is their Graal password. (Correct me if I'm wrong on that)
Said people then later change their account passwords for the Graal client for whatever reason, but the password for the forums remains the old one. The aforementioned people then don't consider the first password to be useful, and forget it. Then comes a time they need to input the old password, and said people believe the forum magically knows their new Graal password.

Anways, try to wrap your mind around that. Upon reading it, I said "password" a total of seven times!