Poe's Law

From Wikipedia.

Poe's law, in broader form, states:

Without a blatant display of humor, it is impossible to create a parody of extremism or fundamentalism that someone won't mistake for the real thing.[3]

The core of Poe's law is that a parody of something extreme, by nature, becomes impossible to differentiate from sincere extremism. A corollary of Poe's law is the reverse phenomenon: sincere fundamentalist beliefs can be mistaken for a parody of those beliefs.[3]