It's weird what boobs facebook is totally cool with. These boobs, for instance:

Nothing to see here, just some Art Boobs (or possibly weird rock climbing fetish porn? It's black and white and there's no labia, so I'm calling it art). It's been on my feed all day.

I'm not reporting this or anything, nor do I report images of Man Boobs, lest it need to be said that the boobs themselves are not the issue.

Edit: because I forgot to link to the source of the Art Boobs, in case you want to see more women rock climbing without proper equipment .