I saw it mentioned someplace, perhaps a letter he wrote, that he added a bunch of commas, periods etc at the end and let the editor figure out where to put them.
That hasnt diminished my enjoyment of his writings since the editors got to intervene prior to my reading it.
I think its wise for all of us to keep in mind that those we admire for various reasons have their own human weaknesses and quirks, and keep in mind we dont have to be perfect to have valuable knowledge and experience to add to the topic at hand.