I like HN without comment scores, because it avoids the bandwagon effect, also username biases become more important that the actual content, BUT comment score

I like HN without comment scores, because it avoids the bandwagon effect, also username biases become more important that the actual content, BUT comment score do solve an important problem, to highlight the quality of a comment, in a threaded discussion. Solution - May be instead of say "37 points", mark it in a range, (say "20-50" points), to give some idea of the comment quality. OR Even better, Show the percentile range for the comment, within the thread. (Say "80-90"%ile comment, would be better than a "40-50"%ile comment.) OR Grade them ("A" - "E") for the thread comments.