In my experience of HN and StackOverflow, at first, I did not like people downvoting my naive or thoughtless comments. Throughout the years, my reputation on StackOverflow grew and a little bit on HN since the bar is so much higher seems... but in any case, this has been a learning journey in being a more thoughtful and respectful contributor and without those downvotes, I wouldn't have had the self reflection to be better, as trivial as that may sound.