Seriously, there should be a law that only requires to prove that it was the owner who posted it, and not needing to prove the intention. You find it funny to joke with, they would still take it at face value and handle you like as you did it.

That goes for the whole spitting into food at the stores trend as well. Just a joke, we bought it, sure.

Obviously a far stretched example, but if I go to a bank waving a gun in my hands, no one will care if I only wanted to prank them. Similiar should apply to pushing the idea that it's cool, trendy and acceptable to flee from bills or steal from others.

Make sure that it's not just framing, that it was really the person who posted it. Take out the possibility to abuse the system. And when it's certain, they even proud of it, then bring in some deliberately overkill sentences, so these trashy trends can finally stop.