Seeing the top shared and engaged content in this article is pretty much the exact reason I and pretty much everyone I know abandoned Facebook long ago. It has been reduced to mostly just a place for people who are highly addicted to outragePorn clickbait. As the article says:
> ...Instead, it’s often an angry, reactive place where people go to get worked up and to get scared.
I haven't checked to see if this has been studied, but I'd wager a years salary that information which causes fear and/or outrage are highly addictive and that Facebook's core crowd are hooked. I'd also wager that this addiction is why so many aren't concerned with whether or not the information is accurate, as long as they get their dose.