Anecdatapoint: I've seen a handful of people post this link on Facebook. All of them are promoting something. So far I've seen no other users post it.

FB's job is to keep the average user (who won't put much effort into sanitizing their wall whatever they clicked on in the past) happy while getting enough money out of their userbase as a whole to stay in business and keep the stockholders happy. It's not their job to keep the promotors who use FB as a tool happy.