I'm in the process of deciding my initial forum setup when I get ready to launch my site, and one thing in particular I've been playing with is the idea of an introduction forum. The more I consider the idea the more I move from being sure of having one to being on the fence about it, and I'm pretty sure I won't have one in the end when I open my site. However, because such a forum is somewhat popular, I decided to front this question out to other admins/users, and see if those who do have a particularly interesting aspect of why they have one (or don't). So, what are your thoughts on introduction forums? Use them? Why/why not?