If you scroll down through the listing of threads in each forum you can get a pretty good idea of how 'popular' it is by looking at the dates of submission. Windows XP, for instance, shows March 1st from top to bottom, while Home Installation has nearly two full months worth of posts on the first page.
P.S. I know it's been a few days since you posted, but I didn't want to leave you with another echo of your own voice.
So you nixed the idea of adding the ability to see the number of views a particular post gets. I can live with that...I guess.
How about listing the popularity of the various forums so we know which get the most traffic. Sometimes you post to a forum and its like an echo...theres just nobody viewing that forum.
Just an idea, keep up the great work!