To the surprise of precisely nobody, managing over 1.2 billion users on a platform that doesn't really care what they do and say as long as it's not too obviously illegal has turned out to be beyond both people and clever computer algorithms.
In a strange twist over an increasingly heated debate over online fake news and damaging misinformation, founder Mark Zuckerberg rushed to Facebook's defence against Donald Trump over the weekend, after the United States President declared the social network a foe.
The irony of Trump attacking Facebook is mind-blowing, given how the latter was used as a propaganda tool to get the current US President elected, but few things surprise in 2017 anymore.
Trump's attack did mean that Zuckerberg has now been forced to admit that Russian ads, anti-Clinton memes and trolls who impersonated muslims to stir up hatred and bigotry might have tilted the election.
"After the election, I made a comment that I thought the idea misinformation on Facebook changed the outcome of the election was a crazy idea. Calling that crazy was dismissive and I regret it. This is too important an issue to be dismissive [sic]," Zuckerberg wrote.