Its a nice story but not everyone is going to be a self-sufficient blogger. He's an outlier.
Few years ago everybody was doing search engine optimization and affiliate marketing. Wave 2 was people publishing e-books on SEO and affiliate marketing. Wave 3 was masses moving in and driving the margins down.
Sounds like professional blogging is on wave 2.
I am not a programmer nor a blogger and I don't see much difference between this guy and most of the stories I read on HN.