Why the sky is blue...
Social media fact-checkers are the consequence of allowing the world’s worst people to own the means of communication. It’s as if you were invited to a big party, on the premise that everyone would be there, and the host lurks near every conversation, waiting to pounce with a correction. “Well, actually…”
This would be annoying, even if they were right every time. But the obnoxiousness wold reach the boiling point if they were to intrude with patent nonsense. “Well, actually, the sky is blue because of blue supremacists”…
They’d run around correcting everyone, and what can you do? It’s their house. If you leave, you can’t interact with the people you came here for. If you return the correction and point to the scientific papers about light refraction and Rayleigh scattering, you might get kicked out. Not because you’re wrong, but because you are right, and that can’t be tolerated.