I agree with you -- Braak should be rated higher. And Havaco is also right, the ratings are thrown out of the equation b/c they are outside of the standard deviation +- 0.5.
I will, however, reavaluate this formula. Right now, member ratings are weighted 5x higher than anonymous ratings. I'd like to change this so that certain users (read: Me, March, Choco) are weighted even higher.