There are certain parts of the history of the rationalist movement that its enemies are orders of magnitude more "fixated" on than rationalists ever were, Neoreaction and the Basilisk being the biggest.

Part of evaluating unusual ideas is that you have to get really good at ignoring bad ones. So when somebody writes a book called "Neoreaction: a Basilisk" and claims that it's about rationality, I make a very simple expected-value calculation.