I honestly dont get all the negative comments - the dude is literally making money doing ... nothing. sure its not ALOT of money and it wont make any difference in his life but it is still money that he hasnt had to do anything for.
Atleast he was honest and not like most gfy'rs who like to exaggerated their real earnings.
He could keep scaling this and have a hands off solution that most of us would love to have.
I don't know about you - but i would not turn down any type of money that i had to do pretty much nothing for other than to cash the check.
u-bob has a great service to find aged domains and domains with backlinks that could make you some spare change
http://www.findageddomains.com/