Did that strategy ever work with conspiracy nuts? In my experience that argument was always met with a response that wove an even more elaborate conspiracy. Like the government/corporations/illuminati deliberately allow just enough people to talk about it unless they get too close, or something similar.

Unfortunately I think this strategy is doomed, it relies on people who have rejected reality to use basic common sense. I don't even know if there is a good strategy to calm a conspiracy nut, thankfully I don't really talk to such people.