Because it has been downvoted to oblivion. HN is a "community" and there are unwritten rules that apply. Being deliberately impolite, attacking another users gr

Because it has been downvoted to oblivion. HN is a "community" and there are unwritten rules that apply. Being deliberately impolite, attacking another users grammar and not views (especially when the topic is not related to the English language) can have that effect. Generally speaking, HN promotes constructive criticism and bashes trolling in direct or indirect ways.