Whether or not it will be an improvement remains to be seen. That said, I'm glad to see improvements attempted. One concern is that I've had some nasty unprofessional responses from people with high karma in the past - responses that made me question how they got the karma to begin with given their snotty behavior. What I noticed is that many had made very few contributions to discussions, but they'd racked up the points with a couple successful post submissions. So, I guess I'm a little concerned about putting moderation in the hands of people with high karma, as I'm not convinced the karma count is actually indicative of good, meaningful participation.