OP claims that synthetic commentators are making claims about them that are demonstrably untrue. This can be (and in other locales is) moderated in a politically neutral way.
I'm fairly sure that in other locales it is moderated in a politically neutral way that does not even attempt to evaluate whether the claims are untrue - the moderators verify if the claims are directly threatening or crude insults, but otherwise moderators don't attempt to determine what is true or not and correct people who say something untrue either intentionally or accidentally.