Are you seeing comment karma totals at all? I see your account is old enough that you date back to before the current practice of not showing comment karma scores by default (except the scores of each participant's own comments are visible to that participant when logged in). So are you asking for a feature that would be visible to each participant, to see up and down votes on that participant's own comments?
The site founder, pg, asked for suggestions on how to "stave off decline of HN" in a thread he opened 233 days ago
noting that he might change settings back and forth as the experiment continued. About two days later he opened a simple yes/no poll about the experiment
As I recall, and as I just tried to verify by using HN search, the site founder pg and most of the other high-karma, long-time users here are reasonably well pleased with the results of not showing comment scores except to the participant who posts each comment.
The site founder, pg, asked for suggestions on how to "stave off decline of HN" in a thread he opened 233 days ago
http://news.ycombinator.com/item?id=2403696
He then announced an experiment with the current practice of not showing comment karma scores in general 224 days ago,
http://news.ycombinator.com/item?id=2434333
noting that he might change settings back and forth as the experiment continued. About two days later he opened a simple yes/no poll about the experiment
http://news.ycombinator.com/item?id=2445039
and 216 days ago he replied to a question with a preliminary report on how voting behavior has changed.
http://news.ycombinator.com/item?id=2465271
As I recall, and as I just tried to verify by using HN search, the site founder pg and most of the other high-karma, long-time users here are reasonably well pleased with the results of not showing comment scores except to the participant who posts each comment.