I believe the "Forum" section works fine with the current color setting, and doesn't need changing.
After that, say you are clicking on Schweb's Lounge, that's where you become inundated with the red.
The new, or updated threads look fine with the bold red. It's the old one's that would look better with a different color. To me, anything in red suggests importance, which fits a new/fresh thread fine. I believe the tried and tested color of black text for ond threads/links works and looks best.
I think the folders only help to the smallest degree, at least to me because I go up and down the listings and look only at the text...to know what the thread is. I don't really read the thread title, and look to the left to check out the folder. I actually can't remember ever looking at it until the upgrade.
Also, if it were me, I would change the clickable user's name to a different color so that it doesn't all blend in on the forum section. I envision a dark blue for that would look nice, or even the same shade you see on the user's name you see once viewing a thread. I wish I could tinker with it and help you out, but I'm only a member.
What do you think?