Nice finds, I think that guy just posted it for the attraction of earncrypto.com but it doesn't got the attention before. And the post was way back from 2013 and it's already outdated I think because probably too many changes has happened.
i've searched this site on google, and i've found some people claimed they got paid from this site, but the answer was 4 or 5 years ago, so i starting to doubt if this site still pays for nowadays.
What I did was, I checked those recently 'paid' on their dasboard and tracked it on their individual explorers and there's an exact amount with those wallets on what reflected to that website.