I notice a lot of people are displaying their e-mail address in their profile. No problem , whatever suits you but I'd suggest not doing that. There's bots that spider the web specifically looking for them and once they get it you'll start getting spam. Once it's on "the list" it's on there forever and will get passed around to other spammers.
I display mine but really have no choice. I've considered removing that field but I think I'm about done with modifying this forum. PHPBB3 is on the horizon so I'll be starting all over again.
Test Forum here if any one wants to take a look, the user control panel is quite extensive. Allows you to manage topics you want to watch or even entire forums. :
Username: estuser (no that's not a typo, it was when i put it in... ):P