This is a topic which I've been thinking about a lot, and I think one problem is with the recommendation algorithm using likes/views/comments as a signal for what to propogate in people's feeds. This creates an incentive for controversial content and disinformation.<p>Another big problem is that a post has a lifetime of a few hours. Even if someone comments to point out a lie, or like twitter a "community review" is added noting disinformation, by that point a viral post has already potentially affected hundreds of thousands of people, who will never see the follow up. And this also means there are no repercussions for the poster, since people never see that their post was labelled as disinformation. I think a potential fix here is to have certain responses on posts one has interacted with/seen, appear in your feed. This way you get that follow-up and potentially also inspire more discussion.