Back during the US election, HN became mostly news like this, and if I remember correctly it was decided it wasn't the purpose of HN to link to such news. It does not mean that these news are considered false, or not important, it does not mean censorship, it just means that HN is for a rather specific kind of stories.
This story from 3 months ago is as tech-related (Google changing their algorithm) as you can get. It wasn't visibly flagged, but was almost certainly de-ranked, and it wasn't just me who commented about it.
Even if you can buy the excuse that this isn't related to tech or start-ups, and ignore the very active commenting on it, you're still left with the utter refusal to allow any transparency about what is flagged and de-ranked. Why shouldn't we demand better?