I honestly, truly thought they were making it up, Just so they could do the "North American Association of Marlon Brando Look-Alikes" Joke.
Imagine my Surprise when I found it was real....
I first heard about it when I heard that the celebrated overrated Beat poet Allen Ginsburg was an enthusiastic member. When criticized over it, Ginsburg retorted - "child rape? What about Rush Limbaugh? He commits mind rape!"