"You can see a number of users with very high total karma but very low average karma. I'm sure that some of these users make a valuable contribution, but some s

"You can see a number of users with very high total karma but very low average karma. I'm sure that some of these users make a valuable contribution, but some seem to post a vast number of very low-value comments that are rarely replied to and receive only occasional upvotes." I comment in a lot of new stories/links that pop up, especially people asking critiques because a) it's disheartening to post something about your work and have zero replies and b) I often get to see a cool product that's in a very raw stage and hear feedback from the creator themselves. In fact, I'd say less than 25% of my comments are in front page links. But often these new stories rarely get traffic. And my comments will usually just get one or no upvotes at all from the creator, despite their thanks for the criticism. Just saying that not all low-averaged scores are people not actively trying to make a contribution.