Facebook pays its bills by primarily being a mass reach advertising platform just like any mainstream TV channel. They are not some public communications servic

Facebook pays its bills by primarily being a mass reach advertising platform just like any mainstream TV channel. They are not some public communications service. Therefore they will curate their content in such a way that preserves and expands the mass reach as much as possible (eg. by following country specific content guidelines) and keeps them out of legal hot water (in this case, the risk of child porn) and negative imagery contexts to keep them an attractive source for advertising. For instance, mainstream advertisers (with the exception of the Bennetons of the world) don't necessarily want their brands to appear in possibly negative contexts. Given these economic interests, any content process they have will necessarily lean towards extra caution. It's not so much "censorship" really as economic self interest. In these things, follow the money.