Having said that, perhaps it's time to entertain the idea of a word economy on Hacker News, ie, some sort of daily/weekly "word count account" ... perhaps based on seniority/points ... that would counterbalance the compulsive counter-comment inspiring nature of this service.
Debate is sometimes good; scrolling down and down and down to get past endless trails of points/counter-points of exponentially decreasing marginal value to the original post seems like an exercise in obsessive-compulsive disorder reinforcement.
Surely having a set amount of words one can use in any given day for comments/responses would inspire more "on-point" and brief commentary that would make numerous editing features of this site redundant?
It's still free speech, just limited, self-edited free speech.
Flame away ...