Agreed. Between calling it a "line of code", the green name, the fact that the submitter has never posted anything aside from their own products, and the title, this looks like spam to me.
Not to mention, they got the signups they wanted, but lost a ton of business by giving away premium accounts for free. If those two original signups PAID for premium accounts, the company would have generated more revenue.
Think less about total signups and more about converting signups to paying premium customers.