I don’t think he should be arrested, but there is a line to be drawn between mocking the police and fooling people into calling them like in TFA where he delete

I don’t think he should be arrested, but there is a line to be drawn between mocking the police and fooling people into calling them like in TFA where he deleted the posts that made it clear that it was a joke. “ruining the joke” is often a euphemism for “it’s funnier when it fools people.” This stunt ended up acting more like a hoax in practice; it wasn’t just a snarky tweet. One of my favorite FB groups (and Twitter accounts) is https://mobile.twitter.com/elwooddogmeat https://mobile.twitter.com/elwooddogmeat which is a fake company that fake sells dog meat with the same marketing as cow/pig/chicken meat that sometimes gets a huge rise out of people. Imagine a case where it also creates a torrent of phone calls of concern to a public agency. Perhaps a better solution is for the police to contact Twitter/Facebook in such an event where the account gets a large parody banner for the lemmings who can’t read the joke.