Been a bugbear of mine for years - is that even possible? With all of the Social Media/Forum posters who post racist/homophobic/misogynistic bile, does it make it OK if you are just trolling and don't believe it? We aren't talking irony here - this is just out and out bigotry. Does posting it when you don't believe it make it OK or worse?
Interesting question.
Worse I would say. If it is a joke and you don't share the joke it is the same as being it, though.