I've never seen what I call "fake news" (conspiracy theory oriented clickbait) on Facebook, personally. But I've seen a couple of really oddball conspiracy theo

I've never seen what I call "fake news" (conspiracy theory oriented clickbait) on Facebook, personally. But I've seen a couple of really oddball conspiracy theory oriented Youtube videos as "recommended for you" from time to time. I've always wondered what triggered those. I don't use Facebook much at all, but my general impression is that some of "trending topics" and "recommended for you" is shaped in part by what people in my friends list have clicked on / shared / liked / etc. I only have a couple people on the feed that are terribly prone to the conspiracy mindset, so to me it's not surprising I don't get too many of those type of posts in "trending topics". (I usually use Youtube without an account, so maybe it's a little more random there.) It's good that Facebook is adding a more descriptive headline to "trending topics"; the current headline-oriented format I found fairly useless (for reasons described in the article; currently, the two or three word title that trends is not terribly helpful, you have to hover over the text to find out what the actual story is).