In short, we seem fine without them. However, one thing I did notice was that voting on comments decreased slightly. I don't believe the quality of our comments went downhill last week, so my guess is that the small incentive that karma/clout brought was affecting our comment voting activity, even if subconsciously.
Personally, I did miss seeing a measure of my activity just a bit. So, in an attempt to address the commenting voting issue (and my vanity), a personal hubwheel has been added to the top right. This is a measure of your total influence and activity on Hubski. The more that your posts are shared, that your comments are appreciated, and the more you interact with other hubskiers, the more complete this hubwheel becomes. Your current clout scores figured into this personal score.
As always, feedback is greatly appreciated. Thanks!