"Fact checkers" would be hilarious if they weren't so effective at fooling the gullible. I don't know why exactly they sprung up, I guess people eventually started to cotton on that news and internet corporations were not exactly on the up and up. So calling something news or journalism no longer cuts it. We now have another layer called "fact checking" and millions of people fell for it. Pretty soon it's going to be "really truthful Science™-based fact checking brought to you by Experts".