From the bottom of every PPRuNe page:
*"sciolist"... Noun, archaic. "a person who pretends to be knowledgeable and well informed".
411A and
SNS3Guppy both tend to fall into that category - they'll tell you they have flown the serum to Mercury, and advised everyone from Glenn Curtiss to Kelly Johnson.
... but never any verifiable details, like company, or type ...