[palehose]

Upvoting a comment should signify that I agree with what the author is writing, not that I want that comment to have more karma points. I don't care how many upvotes a comment gets if the people who are upvoting it are not people I agree with.

It would be more helpful if there was a lingering effect to agreeing with someone instead of just giving someone a karma point increment. Lets say that I upvoted zzyzx's comment, and based on that upvote, I am able to see a thumbs up on other comments that zzyzx upvoted, indicating that people who I agree with, agreed with that comment.