As I "write a blog"

Seth Godin has a short post about how to sound smart (or not) when talking about techy stuff. A reader named Jackson chimed in with this:

A blog is the whole, and a post is just one article (like the one you’re reading). So you don’t say, “I wrote a blog about that,” you say, “I just blogged about that,” or “did you read my post on how to talk about the Internet?”

Thank you! I’m seeing that in well-respected publications lately, and it’s annoying.