https://www.cnbc.com/2018/04/24/facebook-content-that-gets-you-banned-according-to-community-standards.html

Facebook released its "Community Standards" on Tuesday, a list of official rules that outlines the types of posts that can get you banned from using Facebook. It also outlines the types of users it doesn't allow to post.

I dug through Facebook's guidelines to understand what's allowed and what isn't.