nitpick: I was fully engaged with this article until I hit

> And a bonus point: you skim. Did you notice number 5?

Then I bounced. The best readers skim aggressively. Most text is not worth reading. You skim to identify what is.

But moreover, reading != proofreading. I read every one of the bullets! I did not pay attention to the numbering scheme, because it conveys no meaning. It's a structural affordance for referring to the text, not part of its content.