How do these kinds of deals work? It sounds interesting but I can't say I understand it... Please provide more information.
It's pretty straight forward. You add him on skype, and then he'll either send you to a phishing link, ask you to install some malware or even possibly ask for money up front.
As devans (the owner of bustabit) said, he's not associated with the site -- he's just here to scam.
Yes this is just a trap, the op is trying to get people to contact him so he can scam them in some way or form the best way to avoid this is simple if it is too good to be true then it probably is, who is going to give someone money over the Internet especially a currency like bitcoin that once that it's sent you cannot get it back, it doesn't make sense.