(FYI), I was confused about the table structure so I looked it up. The revenue number is his raw retail sales value generated, and his "advertising fee" is his commission earned on those sales. Amazon has a chart for how much you can earn (https://affiliate-program.amazon.com/gp/associates/join/comp...)
So he was only making about $100/month, which is cool for some extra food money, but with his cleverness, I could see him easily figuring out some scheme to generate thousands like most blackhat affiliate marketers.
I once used Mechanical Turk to filter leads taken from a keyword search on Twitter, generate customized responses, and vet those customized responses through a voting process. My goal was to add a very human element to direct marketing and do it cheaply. I ended the experiment as sales weren't converting enough to justify the expense. It was a fun experiment though.
This is an amazing line. I don't know whether putting in "sprint" where you would expect "stint" is wholly intentional, but it is genius.