https://motherboard.vice.com/en_us/article/kzkpea/facebook-poop-emoji-hatespeech-documents

A single emoji can make all the difference between an innocent joke and a hateful message. With that in mind, Facebook trains its moderators in how a slew of different emojis can violate any number of the social network giant’s content policies, including poops for hate speech, vomit faces for bullying, and crowns for sexual solicitation, according to internal Facebook documents obtained by Motherboard.

The documents show the constantly evolving arena of content moderation, with phrases, fictional characters, or in this case, emojis, potentially taking on new meanings that platforms then have to tackle.