I never even visited the "VIP" or Beta sites, so the design came as a bit of a surprise to me.
I think it'll grow on me, I don't really have any issues with it (but could you make the font-sizes a point larger? I know there's user CSS, but I think bigger content text would work well for everyone).
Not sure about the blue though. And apparently the avatars are smaller too? Didn't it used to be 160px wide, but now it's 110px?
Also, can you allow 32-bit PNGs as avatars? I'd like to use transparency effects in mine.