Facebook eliminates photo of woman's elbow that looked like her boob (not really NSFW)

I give Facebook credit for attempting to keep the site free of adult material.  The Internet is full of porn so nothing wrong with a porn-free site.  The problem is that Facebook can be a little arbitrary in waht constitutes "indecent material"  There have been a number of controversies of the past few years. Well here is another one.

An audio-visual web magazine posted an intentionally misleading photo on its Facebook page of a bathing woman who appears to be flashing her buxom left breast, areolas and all.  Except, upon closer inspection, it becomes immediately clear that the exposed area is actually an innocent elbow. 
But to Facebook moderators it was one and the same: Within 24 hours, the photo was removed.

But to a horny teen boy what looks like a boob might as well be one.