Poe's Law

Per RationalWiki:

Without a winking smiley or other blatant display of humor, it is impossible to create a parody of Fundamentalism that SOMEONE won't mistake for the real thing.

Poe's Corollary:

It is impossible for an act of Fundamentalism to be made that someone won't mistake for a parody.

Poe's Paradox:

In any fundamentalist group, a paradox exists where any new person (or idea) sufficiently fundamentalist to be accepted by the group is likely to be so ridiculous that they risk being rejected as a parodist (or parody).