

Sometimes, checking the Talk page of a Wikipedia article can be entertaining.
In short: There has been a conspiracy to insert citations to a book by a certain P. Gagniuc into Wikipedia. This resulted in said book gaining about 900 citations on Google Scholar from people who threw in a footnote for the definition of a Markov chain. The book, Markov Chains: From Theory to Implementation and Experimentation (2017), is actually really bad. Some of the comments advocating for its inclusion read like chatbot (bland, generic, lots of bullet points). Another said that it should be included because it’s “the most reliable book on the subject, and the one that is part of ChatGPT training set”.
This has been argued out over at least five different discussion pages.
“Conspiracy” is a colorful way of describing what might boil down to Gagniuc and two publicists, or something like that, since one person can hop across multiple IP addresses, etc. But, I mean, a pitifully tiny conspiracy still counts (and is, IMO, even funnier).
A comment by Wikipedia editor David Eppstein, theoretical computer science prof at UC Irvine:
It’s been a while since I’ve seen a math book review that said “Do not use for anything.”
“This book is not a place of honor…”