Sometimes you fall in love with a book because of the story and sometimes because of the writing. When you get both you’ve found a classic. It was the writing I loved when I read McCarthy for the first time earlier this year. The Road is sparse, evocative and compelling writing at its finest. So I’d argue that even if he’s talking about a scientific research paper (which he is), when Cormac tells me how to write then I’m going to listen. And you should too. His advice applies to all forms of writing and yes that includes blog posts.
If you’re in the listening frame of mind then you should also pay attention to Stephen King who knows a thing or two about what good writing is and what it ain’t.