If they sign up don't forget to warn them about the little "new post" issue here. This is the only forum that I've been on that hides threads after you view them until a new post is made. Its a pain sometimes when I decide I want to go back and respond to that thread I read earlier, but its not there so you either have to search for it or click "mark all forums read" and then it'll show your the previous 24 hours.