I guess I don't exactly understand your question. I think maybe you are merely looking at the top of the page where a bunch of sticky notes are pasted to stay there. If you drop below them you'll see several threads with postings in May and still more in April.
So clearly there are new posts and threads but admittedly this is a very slow forum on the site. With right at 200 separate forums here we have some that are very busy and some I wonder why I even leave up.
Just look below the list of sticky notes and you'll find the newer posts here.