I'm curious how the first graph changes if you do exclude comments with no votes, so you only count comments with at least one vote.
(Edit by Stu)
Number of User Comments with Score >= 1 vs Average Score of Votes with score >= 1 for users with at least 10 comments alt text http://lanai.dietpizza.ch/images/stack-overflow-comments-user-total-vs-avg-score-with-at-lease-one-up-vote-small.png (Larger image)
