An internet expert who believes anything and everything he/she posts is unquestionable fact, and has no burden to support any of his/her claims.
Bah, you can ask him for evidence all day long, but he's just another armchair dictator.
A lazy filmmaker who puts no effort in directing a movie. A armchair dictator is typically only in it for the paycheck.
George Lucas took an armchair dictator approach to making the prequels.