It's schrodinger's troll - if it's received poorly, "geez, it was just a joke guise - trololol" if not, it was definitely serious.

That's largely how 4chan turned into what it is today (and has been for a long time) - the edgy jokes attracted the genuinely hateful dipshits that don't have the capacity to understand irony (a fascist trait because of their inherent contradictions like a simultaneously strong/weak enemy), the idiots started clapping, and the dumb hate reenforced itself.