In theory, although I don't think it's quite done yet, users who haven't completed registration, or who haven't been approved, should be able to post in the advice forums but not able to see other people's threads there. I went with admin-approval-only because I don't want spambots but I also don't want people to have to use email since some of the likely users can't safely do so. This may change later. Downside: Since I'm gonna go try to sleep, no more users approved until later. Eventually I may try to add other people who have permissions suitable to activate accounts.