The problem with misinformation, ultimately, is that it is given a platform. We've reached an inflection point where people can truly believe these mistruths so deeply, that any fact checking is received as a personal attack -- and they get even more defensive.

Facebook (or YouTube, or Twitter, or whoever) can try to come up with even more infoboxes or disclaimers, but it will continue to exist as long as it is given a platform.

The original sin of social media comes down to the idea that anyone can post, and that virality begets virality. Shocking content is presented on the same level as traditional media -- and in many cases, can exceed those traditional news sources' reach.

FWIW, and disclosure -- we're building a platform that aims to combat misinfo by making it only for news. (https://blog.nillium.com/were-not-an-aggregator/).

Our reporters follow an Editorial Policy, that comes with consequences if they break the guidelines. Virtually every respectable news org has something like this -- we're just making ours public. https://www.forthapp.com/docs/policy.html

Until we hold the reporting produced by professional reporters -- reviewed by editors, fact checked, and held in check by an editorial process -- at a higher esteem than what Firstname Bunchanumbers says, misinformation will continue.