I don't like the massive font size for the titles either, but that's probably a matter of personal taste.

However, I have two major issues with the forums as they are now, which are so serious that they significantly reduce the usefulness of the forums to me: 

1. All references to Renderosity forum threads that were posted elsewhere don't work anymore. If you try to follow those links you end up at the forum topic list.

2. The search is completely broken. Just recently I tried to search for threads on Poser materials, using the search terms "gold" and later "water", and ended up with a long list of completely irrelevant threads, and the ones I was looking for didn't turn up.