Ask HN: Why recent post “What do you hate most about HN?” downvoted to oblivion?

Referring to https://news.ycombinator.com/item?id=18184725

Was it because word 'hate' is too strong for HN to take? I thought HN is quite a mature community to take these kind of questions. It could've seen as a way of improving itself, but instead it's moved out of HN/Ask HN home page quickly, didn't even stay 9 hrs in 'Ask HN' page when posts older than 2 days are still floating.