"Fallacy" and "Rhetoric" are both more neutral and broader than "woo". I'd even put a label on that says "Alleged fallacy" rather than "Fallacy". Otherwise it's simply a matter of accusing people with no way to defend themselves.

This sort of thing broadens out very quickly into Issuepedia 2.0, if you allow replies, say. It would make more sense to think about it carefully than to do it ad-hoc (although not, of course, to try to implement all features at once).