Another quote from that same link, from that same hateful person whose first grievance was that Feynman was just interested in calculations and playing the drum :
"I do not know—but I believe that Richard Feynman is either a Communist or very strongly pro-Communist—and as such is a very definite security risk."
I had read many books from and about Feynman, probably even more than the average HNer; first time I encounter such a claim. I do not believe in heroes and like to have my beliefs questioned, but in this instance I will still stand with Feynman. This case does not look like it is about violence.Apart if you want more clicks on YouTube, I don't think it's fair to call him a sham, unless you believe every popularity is a sham, but I don't think it's the case being made here.
Also, Feynman never wrote any books. His "textbooks" are lecture notes, mostly compiled by other people.