Is fact checking that difficult? Imagine a forum that works in the following way: 1. You post similar to here. 2. Any post that has a claim is flagged. The poster, or another commenter has 24 hours (or some time period) to link to both a page and specific text (similar to how Google highlights search text when visiting a link) that supports the claim. 3. Once a claim is attached, posters can vote and downvote how wel…
That's why there doesn't seem to be any fact checker whose calls aren't predictable from one of the major ideological partitions.
Another way of putting this is that the question, "what are the facts?" is complex enough to already recreate the entire political and ideological contest. It's understandable that people would like to reduce that contest to a simpler subset of factual questions—but you can't. Just the opposite: that apparently simpler subset reduces to it.
(Edit: it might be worth repeating that there are infinitely many facts, and they don't select themselves—people do that, and when they're people with political preferences, that's usually the high order bit. https://hn.algolia.com/?dateRange=all&page=0&prefix=true&que...)