> Lunagender, also called monagender, monegender, or selenogender (all of which mean in some way "moon gender"), is a fluid gender identity that changes on a consistent, orderly cycle, reminding one of a lunar cycle.
This is cherry-picked/extreme. Besides, it doesn't appear relevant if you intended to actually address what the parent referred to as "not nonsense" in the general sense. It's not relevant to what the GP was saying, either.
Not nonsense eh?