As far as all the subfora, by using the 'new posts' feature I get recent posts from anywhere without having to 'search around'...
My problem is that there are 4 implementations of "New Posts", all different. The one that appears to be most used ("New Posts (no OT/politics)") disappears depending on where you are in the site.
Home shows new posts from a select set of forums.
New Posts shows everything. This one is highlight and has two buttons on the forum at all times for logged in users.
New Posts (2 variations of Off Topic/Political) show a subset that is larger than the homepage, but not everything.
Today's Posts is yet another view that is like New Posts, but with a time bound.
I'd argue that the homepage view (you get there by clicking "Home") should match "New Posts (no OT/Political)". The "New Posts" quick link should also take you there, or be configurable.
Cleaning this up would make the forum experience a lot better.