Earlier quoted context omitted.
Yes. We're talking about a platform that at it's best is birthday wishes, vacation and cat pictures. It's running on a paid content model, with advertisers selling through viral videos and click-bait. It's good not to expect too much out of it.
We're actually not; that's simply false. No, Facebook is not "at it's best" [sic] when it sticks to birthday wishes and cat pictures. It's actually at its best when it is truly social , in all senses of the word. When it facilitates real communication on real issues across a broad spectrum of people. When it spreads information, not misinformation.
I agree with others that detecting misinformation in the general case likely requires a theory of mind, and so something approaching "real" AI. I also agree that FB has a serious problem on their hands. And I'm so very glad I don't use it.
[1] I advance no comment here about the correctness of that; just a comparison to illustrate what seems like an overlooked point.