There is a lot of voting manipulation that occurs on HN (despite the best efforts of the HN crew and algorithms). Facebook actively manages its public image and that extends here as well. Mainland China does it too. And there are many others. /tinfoil
Please don't make such claims unless you have a good basis for them (this is in the guidelines: https://news.ycombinator.com/newsguidelines.html). They're corrosive to the community, and usually there's nothing more to it than that people saw comments on HN that they strongly disagreed with. In such a case it often seems like there can't be any reason why someone would post such things in good faith, so they must be fake—but of course that isn't evidence, other than of the topic being divisive.
I hear you regarding conjecture though I believe it is important for people to be skeptical of what they read. People have become more aware about this regarding the Main Stream Media and Amazon and Yelp reviews over the past few years but this perspective is also needed when reading things like Wikipedia and HN.
