So how is this different from Klout's "high tech super-secret ranking algorithm" that everyone knows is worthless?
http://www.githire.com/user/tom3q has a bunch of repos and a score of 2.79.
http://www.githire.com/user/ukanga has basically nothing and a score of 5.33.
All I really see here is a "who's who" of the popular kids.