The problem, in my experience, is that for one legit fact usually there is a lot of actual fake news thrown in, along with context free facts, in those communit

The problem, in my experience, is that for one legit fact usually there is a lot of actual fake news thrown in, along with context free facts, in those communities. This causes a lot of people believe false things and keep repeating it to others. A form of brainwashing. Also people who assume someone's guilt and then work backwards towards showing it, while ignoring other signs.