[1] https://news.ycombinator.com/item?id=35009073
[2] https://hackernews-insight.vercel.app/user-analysis
I have definitely noticed a large influx of posts which are basically blog posts posted to HN. No questions, no links, nothing shared, just... someone posting a few paragraphs of their own thoughts. So while I've been around long enough to know that eventually the community tends to settle into its own norms... things have felt different recently.
None of this answers your question, so this was a lot of words to say, "I don't know, but am interested in the answer."
There's a lot of retro going on atm: typewriter collecting, pinball, what's old is new and HN is quite old school.
That's assuming the users are legitimate, it's possible they are not legitimate. The idea that state actors are leveraging technology to manipulate online discourse is definitely worth falsifying.