Nah. The question-asker has to assume 'hate-AI' is untraceable. Otherwise it's not 'hate'. It's hearsay. It's the same thing we always deal with.
Jack holding the bucket at the bottom of the hill, doesn't assume Jill's whereabouts. AI can't assign anything to her without being traceable as fake. So no, this isn't the first untraceable AI hate-hoax.