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posted ago by MAG768720 ago by MAG768720 +14 / -0

Quack:

  1. A practitioner who suggests the use of substances or devices for the prevention or treatment of disease that are known to be ineffective.

  2. A person who pretends to be able to diagnose or heal people, but is unqualified and incompetent.

https://www.medicinenet.com/quack/definition.htm

Maybe we should start using that term more often.