Change name in board

[joakandr]

Hi, I really want a mod that when a registered users enters a certain board for the first time, he is required to re-name himself just for that particular board.

This would be great for things such as role playing games!

So what happens is a user registers on the forum, with for example the username bob. Then if he enters a certain board with this mod enabled on, it gives a brief description (Which could be customized to say what kind of names they should choose or something)
and tells them they cannot change the name once set. (only admins can do that)