not only logic and critical thinking, but also history. Lots of the stuff happening already happened before. Conspiracy theories are becoming a series of big "told you so" events.
This implies the Left/Dems/Libs changed the definition because at one time it was literally the opposite; people believed everything that was on the TV(or Internet) without doing any real research.
"Conspiracy Theorist"; A person who researches a subject and then uses logic; and critical thinking skills to form an educated opinion; Instead of just blindly believing whatever they saw on TV