I would like to refrain using my professional e-mail for forum registrations and such (although I can use it if necessary), and I belive some people have the same issue. Also, for every troll there would be 50 other good posters who would be forbidden of access to the forum. Besides, having a proper domain name e-mail is not that difficult, and those who want to troll around will still be able to. I say it's not a good idea, Jay...