Hacker News is nothing but a censored echo chamber, pretending otherwise at this point is pure ignorance. Anything that doesn't fit the narrative will be beaten down or removed.
In any case, I don't necessarily disagree, but I've yet to see good evidence of the shadowy cabal, rather than user-directed flagging. I mean, just look at the list in the article: does it point to any kind of "beating down stuff that doesn't fit the narrative"?
And not always a bad thing, even if I think this place could use a GNAA troll every now and then. I don't need 10 cynical articles about big tech every morning. Those views need to be heard but at some point it's not interesting to me, that's not the stuff that keeps me refreshing HN while I should be programming.