The W3C is recommending that developers go beyond just creating valid pages, and encourages them to "think content, think style, think navigation." This may have been the first time I've seen a "Tip of the day" on their validation page that was more meaningful than "use <h1> tags." I was even more shocked when I saw that they had implemented an outline feature in the validator and even more surprised that they had developed a semantics extractor.
I decided to test out the outline feature (knowing full well that it wasn't going to be able to gather much, if anything, from my site since there is nothing there. It turns out (and this isn't very shocking) that the only thing the outline does is read in the header tags. So, I have gone back to doing something I stopped a long time ago... My news titles are headers, not divs.
After making the minor changes necessary to switch over to using headers, I decided to see what the semantics extractor actually does. Unfortunately, it seems to be broken right now. Maybe I'll remember to check it out again later.