> When we launched our independent fact checking program in 2016, we were very clear that we didn’t want to be the arbiters of truth. We made what we thought was the best and most reasonable choice at the time, which was to hand that responsibility over to independent fact checking organizations... That’s not the way things played out, especially in the United States. Experts, like everyone else, have their own biases and perspectives. This showed up in the choices some made about what to fact check and how.

This frustration with fact-checkers seems genuine. Mark alluded to it in https://techcrunch.com/2024/09/11/mark-zuckerberg-says-hes-d... which squares with how the Government used fact-checkers to coerce Facebook into censoring non-egregious speech (switchboarding) https://news.ycombinator.com/item?id=41370516

Alex Stamos pushed this initiative pretty hard outside of Facebook in 2019+, seemingly because he wasn't able to do inside of Facebook back in 2016/2018. But I haven't dug into his motivations.