At present if you are in a forum sub-section and hit the home button you are taken straight to the main page. You then have to start back in by clicking on community. If the main forum page (the forum index) was added to the navigation path it would allow the user to head straight to the next section they wished to view.
EG. at the top of the page Home - Your Ideas - New Idea
could be altered to Home - ForumIndex - Your Ideas - New Idea