I visit another forum (
Android Forums). It has nearly a 100 sections. So, like this board, pressing "new posts" is nearly worthless. However, by enabling the favorites, you can select the handful of sections you like and when you click the correct link (new-->favorites) you only see new posts from your favorites not the entire forum. In fact I just bookmark this link...
Code:
http://androidforums.com/search.php?do=getnew&favorites=1
... and use it to visit the forum. And, occasionally, I view the full listing to see if any new sections have been added I might want to follow.
It is a great feature for a forum with multiple unrelated sections (5W, TT, HTT, made/model sections, etc.).