Calling into question fact checkers is a good thing, skeptics should be welcomed. But I suppose there is a subjective line between reasonable skepticism and near-schizophrenic skepticism.
Sure. On the other hand, my newsfeed's nuts complain about fact checkers flagging their "nanobot infused COVID-19 vaccines by Bill Gates that can be controlled by 5G towers on command by Soros" posts as censorship and shills of the NWO.
Of course, fact checkers come with their own sets of biases, and any (educated) reader can identify those.
But the fact that reporters from all around joined fact checking campaigns is a good thing.
Their interests align with those of the population, even if the population thinks otherwise: you can't compete with trash media with real news and coverage, so either you crush them with "fact checking" and try to eventually deplatform them, or you become another Daily Mail and roll up your sleeves for a mud fight.
It won't stop hardcore conspiracy theorists from believing anything, but it will save me time from explaining my mom that no, Bill Gates isn't gonna inject us with microchips to have us located 24/7.
The Bill Gates ones are just the weirdest. I watched someone try to dig in to this a bit with someone pushing the idea that Bill Gates was trying to control us with vaccines/5g.
"Why would he do that?"
"Oh, there's money! There's lot of money in controlling people with vaccines. I know if I had that kind of power, I'd want to make money like that". (paraphrasing, but only just).
I think people have a difficult time comprehending the level of wealth/power someone like Gates or Bezos already have. Having wealth north of $100B is something only a handful of people will ever experience. To think someone has worked their whole life to get that sort of money, then... someone, would decide to say "I want to control people with vaccines because I can make a lot of money that way!" is ... off-the-radar silly. For a time, Gates had a lot more potential control over the information itself, and likely could have enriched himself even more directly, without needing to resort to medical intervention.
People are scared. The world is changing around us faster than many are able to keep up. Focusing your fears on a few outsized larger than life names to try to make sense of things is... I guess understandable to a point, but... these 'theories' can't seem to stand up to much basic logic.
Personally, I only try to have instructive discussion if I care about the person. Then it's time well spent. Strangers on the Internet? No, thanks.