The feature is very nice. It got great feedback from people in our team. Their points for improvement were:
- It is hard to see the karma bars that are yellow and red. I'd suggest making them all green.
- The black/grey strip is distracting and looks un-pretty. I'd suggest making the green bars darker, on a transparent background.
- When you hover over the icon the large view does not say anything about the karma, it should.
Great stuff, it's going to be useful IMO especially when we can start to filter comments by karma.