I seem to remember they used to indent Python code with 2 spaces. Glad to see it's 4 now.
In fact, a better article would have been to try and predict the eye powers of a programmer based on their formatting choices.
Edit: Did someone seriously downvote me for how many spaces I indent with? Funniest downvote I've gotten so far.
I think all these will be covered by the "be consistent" clause, and whoever made the first commit decides the style.