I like the site just fine, but there are only two changes I'd like to see.

1. It'd be nice to have a "PM User" button somewhere on each person's post, so you can drop someone a PM from inside a thread

2. Not sure if this is even possible, but it'd be even nicer to have the two different designs/color schemes be able to detect certain font colors and change them automatically for better contrast/readability. That way someone using "day" can read type set in a lighter color without highlighting, etc.