exactly! two types of people on HN: those who have five or ten minutes to spare (on the bog) and those who comment "professionally" to bolster some sense of compulsion
True, I wonder how much internet points improve quality of conversation. Given some people keep arguing even when they're being downvoted into oblivion, there must be something deeper, like a need for engagement.
And the person getting downvoted is never an expert talking to amateurs, and the downvoters are always correct that there is zero nuance to the subject.