>I know multiple people who invested considerable time and energy into building up Facebook pages only to suddenly be cut off from fans who had followed them when fb decided to go the pay to play route.

An anecdote on a similar note, there's a comedian I'm a fan of who had an Instagram account he used to post funny boudoir style photos as a big, bald, overweight man. All of his posts were well within Instagram's terms of use, in that he never showed full nudity or anything overly suggestive. Basically he was doing the same thing thousands of "butt models" do on Instagram. These weren't just cell phone snaps, either; they were staged and professionally shot images.

He gained a few thousands followers with this, until one day when he was locked out of his banned account with no explanation. With the help of a friend he managed to contact someone who works at Instagram and was told his account was removed for "harassment". Since no other explanation was given the only conclusion that seems reasonable is that people reported him for "making fun of" plus sized female models by doing the same thing himself, which is absolutely ridiculous, as he was always positive about what he was doing. He just happened to be a bald fat man while doing it.