This particular thorn in the side of various Forum Admins has been dealt with elsewhere by using this little VBulletin add in. http://www.vbulletin.org/forum/showthread.php?t=122944
Its a jolly good tool and I believe it has the rare quality of being very popular with Forum Users as well as Admins and Moderators. This appeals to me because I really dont like to see discord.
Perhaps it might be useful here as well, although Im very mindful of the possibility of Forum Overhead, especially with the number of users mentioned by Bhodi.
Its a suggestion anyhow and I promise to keep my nose out of this debate in future !