Facebook working on approach to classifying satirical news pieces

Interesting followup to the discussion on "Facebook Threatens Satire Site Over CNN Story That Snopes Rated 'False'"[0], with a statement from Snopes.com CEO David Mikkelson.

The most interesting thing to come out of all of this: given that "satire" isn't a binary thing, how can you police it? What's to keep anyone from saying whatever and calling it satire, without hurting silly sites like the Babylon Bee or The Onion who are pretty clear about their silliness? Can such a thing be policed manually or algorithmically?

Tangentially, does Hustler Magazine v. Falwell ("the parody could not have been reasonably considered believable")[1] deserve re-evaluation in light of Poe's Law ("it is impossible to create a parody of extreme views so obviously exaggerated that it cannot be mistaken by some...as a sincere expression of the parodied views")[2]? I ask this light-heartedly, more for discussion than out of any kind of strong conviction on the matter.

[0]: https://news.ycombinator.com/item?id=16503829

[1]: https://en.wikipedia.org/wiki/Hustler_Magazine_v._Falwell

[2]: https://en.wikipedia.org/wiki/Poe's_law