I like that idea, Isabel. It's very straightforward to restrict the Newly Registered Users group to posting in the Introduction forum. What I can't figure out is how to control when they are transferred to the generic Registered Users group. The default is after you make 3 posts. I need to do some more googling, I think.Update
:I've made it so Newly Registered Users have read-only access to all fora except the Moderation forum and the Introductions forum. Moderation, they have no access at all (just because that's what it already was, I didn't make that decision in response to spam). In Introduction they have "Limited" access, which means they can post and create topics but can't make polls, for example. I also prevented any Newly Registered user from ever ignoring the "flood limit" (which I hope I am correct in understanding is number of posts per time increment. So they can't make more than, say, one post per minute).
So that's pretty limited. A legitimate user can upgrade automatically to normal forum access by simply posting three times. This information should probably be added to one of our global sticky posts.
And, finally, I'm copying this thread to the Suggestions, Problems, and Concerns forum, and locking it in this one
removing it from where it was in the StuffWhatBoys forum.