So is this post about people showing up at your door, or about keyword stuffing? lol.
I checked and it's not keyword stuffing in my opinion because it's all in a paragraph and although he uses the same keywords over and over again, it's probably not picking up as spam. The bolding of his keywords that he's doing is probably helping him.
I think the main reason why it wouldn't be picked up as spam is because his keyword density isn't that bad because he has so much text, the % balances out. It's bad when the ONLY text on the page is keywords because then your balance between keywords vs. other text is going to be very bad. I checked the site here:
Keyword Density - SEO Tools - Search Engine Optimization, Google Optimization