Previously discussed here: https://news.ycombinator.com/item?id=42156977
HN is a massively nicer place if the author is present to interact. The people who are inclined to criticize don't want to do it to people's face, and the people who want to act questions are more eager if someone is there to answer.
Some folks don’t want others to be happy. I had someone in my life recently complain that someone they met was too happy and thus toxic and ignorant of the world’s atrocities.
Keep smiling at have a good day :)