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I suggest you stop looking at that. And in this case shaking your bum doesn't lead to someone finding out a person's identity(Unless there's really the technology to identify a person by their bum I want it), but the face does. We're going to have kids sharing pictures of their faces in that 'pose' as we did with the 'twerking'. I have honestly given up. And the new one that tops that will make me question my sanity even more.
(Just wait till you have people sharing pictures of babies making that face if they aren't already).