If you want to call that an "organized fringe group trying to control the narrative", I suppose it's really just a different way of wording the same thing.´
My feed looks like what an actual, organic tech forum looks like. Discussing topics that are important to people in tech, which obviously includes the important happenings in politics, but is largely interesting stories in the geekosphere.
Not to diminish the work of mods, of course, but this is mostly about the users who immediately flag stories.
It's not the moderators' job to decide what's true and impose that decision on everyone else. The community would hate it if we tried to run HN that way—it's probably one of the few things that political enemies would come together and agree on.
We don't have a truth meter [1]. It's the community's job to sort out what's true and false. It's the mods' job to (try to) ensure that people (try to) do that through thoughtful, respective conversation rather than flamewar, snark, or attacks, in keeping with the site guidelines: https://news.ycombinator.com/newsguidelines.html.
It's easy and all too satisfying to imagine that if the mods would simply impose your idea (<-- I don't mean you personally, but any of us) of what's true and false, what's lies and misinformation, etc., then the site would get magically and massively better. However, different users have radically different sets of what they consider true vs. lies—why should we select one and not another? This would just be a different way of imposing our own viewpoint on the community. It's not our temperament to do that, and as I mentioned, the community would never tolerate it.
[1] https://hn.algolia.com/?dateRange=all&page=0&prefix=true&que...