I create new posts on my forum everyday, and usually create at least one thread per day. Somedays I won't bother creating new threads if I don't feel we need new discussions. I don't want to be the only member on my forum creating discussions. I also have a blog on my forum, and I create a new blog post every couple of days. I like to show my members that I'm active in the community, because then it'll encourage them to be active as well. How often do you post new content?