Oh, I see the error in my math now. Whoops. Guess it's a saner metric than I thought, though px = 0.87 seems to be overstating things quite a bit as well.
"The correct number of words for this idea is X" does not preclude that people might write more words about it by mistake. Metrics intended as guidelines for people of intelligence and good faith can easily break down when applied literally to cranks.
I.J. Good, from the opening of 1962's The Scientist Speculates (a collection of partly-baked ideas):
(Note that I changed the formatting a bit for readability.)