Easiest bb for your users

I've installed a lot of bbs in my time - most of them don't understand the behaviour of a typical web user - Phorum does! It's really simple to use - people read threaded or flat topics and can post a reply straight away. No complicated login or registration. Users love it and I've had no user support requests - which is quite strange considering my audience are not web savy at all (Husky Mushers). Easy to set up and maintain. Still room for improvement - but the development team are working well and seem to maintain a focus on user centered design.