I was most interested in their solution for this. I like that you can give specific ratings and leave a comment like on many e-commerce sites. They might want to throw in a "reply" type of thing if someone leaves a reputation comment that is untrue so the merchant can give his side. The detailed moderator rating is good too, it's good that it separates between winners and losers.

They appear to be relying heavily upon 3rd party for detecting people creating a lot of accounts to build their own reputation but this was one of the most difficult aspects of it and bogging down the app with solutions is probably best for now. I liked the idea of burning some bitcoins or sending to the developers for each new account but that may have discouraged people from creating one. At least they have a solution to prevent people from spam account creation.