Wikipedia calls this https://en.wikipedia.org/wiki/Citogenesis (after XKCD coined it).
You can expect the spicy autocomplete to feed you flattering bullshit. It may cite Wikipedia (it shouldn't), but you should go check out those citations, and validate the claims yourself. It's the least you can do.
And if the cited source is Wikipedia... check Wikipedia's sources too. Wikipedians try their best to provide you with reliable sources for the claims in their articles (oh who am I trying to kid? They pick their favourite sources that affirm their beliefs, and contending editors remove them for no good reason, and eventually the only thing that accrues is things that the factions agree on, or at least what ArbCom has demanded they stop fighting over).
I guess what I'm trying to say is: don't rely on that authoritative-sounding tone that Wikipedia uses (or that AI bots use, or that I'm using right now). It's a rhetorical trick that short-circuits your reasoning. Verify claims with care.
Also check the Talk page, you often find all kinds of shenanigans called out there.
> ... eventually the only thing that accrues is things that the factions agree on, or at least what ArbCom has demanded they stop fighting over
Or what the faction with the most favored access to ArbCom manages to make stick by getting the other faction banned.
A state actor could absolutely cause immense damage to Wikipedia at scale, because most admins aren't experts in the subjects whose articles they police. I'm just surprised that nobody has done so already.
Perhaps my favorite example of a citogenesis-like process is the legendary arcade game Polybius, which originated as an entry on some German guy's web compendium of arcade games (coinop.org), perhaps as a "paper town", or fake entry that acts as a copyright canary when duplicated elsewhere. Gamer news and special-interest blogs and sites, and even print publications like GamePro picked it up, and I think it was even listed on Wikipedia as an urban legend whose actual existence was unknown. Then the retrogaming YouTuber Ahoy did an in-depth documentary (https://m.youtube.com/watch?v=_7X6Yeydgyg) which concluded that Polybius didn't exist and was never even mentioned before the aforementioned coinop.org reference and, for me anyway, that settled it. Polybius, in its urban legend form, never existed.
(Norm Macdonald voice) Or so the Germans would have us believe...!
And then an insane Welsh game wizard made it real. http://minotaurproject.co.uk/Virtual/Polybius.php