To be fair, not all of the references to Linode are links. And he does end the article with: "If you want to sign up, use my referral link and I’ll get a coupl

To be fair, not all of the references to Linode are links. And he does end the article with: "If you want to sign up, use my referral link and I’ll get a couple weeks of free hosting. If you prefer not to, here’s the plain link: Linode.com" It's not like he's hiding it. On the other hand, it does read like an advert. Had it contained some useful original information, it would be a different matter I think.