A very interesting development. I just received a badrep from someone who's been around a long time. I lost 10737425 points. Calculating backwards, this leaves very strong circumstantial evidence that a badrep is not
-1%, but actually -0,5%. That corresponds with this poster's total being maximum. It would be an odd coincidence if his points were exactly half of maximum.
The best way to verify this is to have somebody with maximum rep power give a bad rep to somebody.