Comment by tomhow

Mathematical quality scoring doesn’t work well for moderation of human behaviour in a community. Context matters a lot. Feelings influence people’s conduct and perception of others’ conduct a great deal. A user may get huge numbers of upvotes for comments they make about a technology or their profession, but then attract many downvotes and flags when they're commenting about politics. This is particularly true when political topics involve war or other life/death matters (which is a major reason why those kinds of topics are difficult on HN – they can bring out the worst in otherwise very positive contributors).