Corporate editors, boiler room political operations, and random conspiracy cranks are given a bothsideism platform to edit and narrate facts in their favor.
"Bothsidesism" is a tired argument. Somehow if you don't think that one side of a debate is utter evil and the other side is as pure as the driven snow, you're engaging in "bothsidesism" if you acknowledge there are any shades of gray in the world. Which is a childish argument for anyone older than a high school sophomore.
"Bothsidesism" is a lie that is used to avoid criticizing one side when the other side is also bad. Just because one side is awful does not grant the other side a free pass to be immune from criticism or to get their way on everything. The idea of "bothsidesism" forces a false dichotomy and then forces you to pick a side, when there are almost always more than two choices. It's what partisans use to beat down people who say "I pick 'None Of The Above,' because you both suck."
You define it that way but that's only you as far as I know - I haven't seen that definition or had that experience - and it ignores the actual bothsidesism problem, which is certainly not a lie IME.
https://en.ejo.ch/public-relations/manipulation-wikipedia
https://imemc.org/article/59294/
https://www.thebureauinvestigates.com/stories/2026-01-14/lon...
https://avim.org.tr/en/Analiz/THE-DARKNESS-BEYOND-WIKIPEDIA-...
https://www.msn.com/en-us/news/politics/congress-opens-inves...
https://arxiv.org/abs/2006.13990
https://www.isdglobal.org/isd-publications/identifying-sock-...
https://www.city-journal.org/article/policing-wikipedia
https://www.theguardian.com/sustainable-business/2015/oct/30...
https://www.techdirt.com/2007/08/14/diebold-disney-many-othe...