In light of QAnon (Conspiracies you no longer put stock in)

After watching QAnon's concept of "trust the plan" implode in real time over the past month, it really got me thinking about conspiracies or viewpoints that I once believed in but don't any more. It's much easier to point it out for others when they are wrong but much harder to see where we may fell for something that was BS. What about you Greg? Are there any conspiracies or viewpoints that sticks out to you that you once believed in and don't anymore?