https://inforrm.org/2014/08/06/facebooks-community-standards-severed-heads-are-okay-but-nipples-are-bad-unless-accompanied-by-a-baby-gideon-benaim-and-jon-oakley/
Facebook’s Community Standards: Severed heads are okay, but nipples are bad (unless accompanied by a baby) - Gideon Benaim and Jon Oakley