Any plans to include weighted commits or lines changed? At the moment it appears you only count the number of commits, which means 10 commits changing one line at a time is counted as a greater contribution than a single commit doing the same operations.
Not all information are avaiable on GitHub UI, please read all the comments in the discussion;
if you're still not convinced you could suggest something you would like to see on the site. This is the purpose for which I submit the discussion.