Ironically "Surely You're Joking, Mr Feynman" is a great example of what the article talks about: compelling and repeatable stories whose basis in fact is often extremely dubious.
My comment is as cheap as yours for illustration purposes. I don't believe Feynman fabricated his stories of textbook corruption. Do you?
Of course the best evidence either way on the latter is the contents of textbooks that are actually being used. How did they get that way? Heard anything that might give us ideas on where to look a bit more closely?