I’d love to see this become something greater. Consider this challenging problem:

Suppose you have an instance with a community (“C”) that likes to promote subtle but wrong things.

Suppose there’s a community of fact checkers (“F”) who wants to promote actual, verifiable/falsifiable facts by responding to lies with compelling and relevant references. They want to help by directly replying to posts or applying tags in community C, but they are not permitted to contribute by that instance. The community C seems to want their lies to remain unchallenged.

And then suppose there’s some opted-in users (“U”) who want to receive help understanding when posts in community C are not factual. They would like to receive posts or tags from fact checkers, because people they trust have recommended they listen to these fact checkers.

I’d love to see a tagging system that can help “U” and “F” connect, even if the owners of “C” don’t want them to, when browsing content in “C”. Ideally in an extensible way that lets some future implementer come up with novel ways to organize and maintain the fact-checking side of things in response to new threats.

I probably explained this badly, and the letters are probably more pretentious than helpful. But I hope someone smarter can pick this up and run with it, because it’s something the world desperately needs.