OK, I'll try to explain more about this hack(I should have explained it at the beginning, but I was too sleepy).
By default, UBB6 has four Custom Registration Fields that can be defined by the Forum administrator. This hack changes the way these customized fields displayed: they are hide away from the members of the forum, only visible to the forum administrators.
So, if you need your forum members to register with additional informations about themselves, and don't want these informations to go public(real name, phone numbers, etc.), then this hack will be really helpful.
