Well... that seems to be working? The story isn't a fact. Got marked as not a fact. What's the problem?
Maybe these posts should have metadata? Mark things like sarcasm, hyperbole, etc. People already do that here - with the /s tag.
At Facebook's scale there are very many 'morons' out there who might see it.
And this article demonstrably confused at least one person... as it got fact checked didn't it?
While I agree that there are people who take ridiculous stuff seriously, they're beyond what a fact checker--or anyone else--can help.
I'd disagree. I think a literal huge 'satire' flag on the post would help.
That said, they clearly label the site as satire on the 'about' page if there was somehow any doubt that articles about spinning news in a washing machine were not serious.