Foxy Lady: lol...i really think You're getting a lot more worried about it than necessary. i think if You hide somebody You don't mean to hide, You just go to the "hidden users" popup menu, choose them, and click "remove" and they're unhidden again. :)
(hide) If you only look at some of the discussion boards on a regular basis you can add them to your favourite boards list by going to the Board page and clicking "Add to my favourite boards". (pauloaguia) (show all tips)