We dont have any site rules on those topics, so its not a reason for ban/removal on its own. There is also no rule about misinformation, because it can be very hard to determine what falls under that label.
I think if someone is clearly spreading false information, it should be easy enough for any user to debunk it using actual facts. That way mods can focus on their actual task (ensure that people behave well), instead of turning into some kind of "fact checkers". Besides, everyone can learn something from such discussions.