Since you are a fan of conspiracy theories, I wouldn't be inclined to look at anything you are suggesting for obvious reasons.
I did a search on when the heavy use of "conspiracy theorist" began to be used, asking,
Is it true that the CIA threw out the word conspiracy theorist at those who wanted to look further into JFK's murder or those who did not believe the official story?
Yes, it is true that the CIA used the term "conspiracy theorist" to describe individuals who questioned the official story of JFK's assassination, but the term itself was not invented by the CIA. The phrase "conspiracy theory" was documented in use as early as 1863, appearing in a letter published in The New York Times, and was used in reports following the 1881 shooting of President James A. Garfield. The term "conspiracy theorist" was also found in print as early as 1962, prior to the 1963 assassination of President John F. Kennedy.
The CIA's use of the term became prominent in a 1967 memo titled "Countering Criticism of the Warren Report," which was released under the Freedom of Information Act in 1976. This document expressed concern about public skepticism regarding the Warren Commission’s conclusion that Lee Harvey Oswald acted alone in assassinating Kennedy. The memo aimed to equip CIA contacts with arguments to counter critics, including highlighting the logical inconsistencies in alternative accounts and suggesting that some conspiracy talk might be influenced by Communist propaganda. The document used the term "conspiracy theories" casually, indicating it was already a widely understood phrase at the time.
Seems they tried to get people to stop looking into things afraid of being labeled as nuts, whereas today its lost its effect and people wear it more like a badge of honour
Edit: typo