That's totally fair.
Here, have an upvote. :)
EDIT: I changed the evaluation to not make the avg karma relative to total karma but instead to the median value of average karma of all users. The downside to this is that Median(AvgKarma) would need to be calculated quite often throughout the day because I doubt pg wants to pay for the resources to run that everytime someone votes.
As an example I give you this discussion. In this thread I have 2 posts, both with 1 karma right now. I do not expect them to go up much if at all. Where would you suggest that I should have gone for this conversation with you?