Comment by rpcope1

Even the real progenitors of a lot of this sort of thought, like E.T. Jaynes, expoused significantly more skepticism than I've ever seen a "rationalist" use. I would even imagine if you asked almost all rationalists who E.T. Jaynes was (if they weren't well versed in statistical mechanics) they'd have no idea who he was or why his work was important to applying "Bayesianism".