Wuffie's application to webpages

Ok, I know, I know, wikipedia feels like cheating, but this entry makes a good point that online trading sites like eBay use not only money but reputation scoring (feedback ratings on eBay), that sound an aweful lot like Doctorow's Wuffie in Down and Out. As much as I argued it wasn't a workable system in class today, I can see how it would be useful online when paired with real currency. Will I actually get paid by this guy, or will he gyp me? I can just look at his reputation score/Wuffie and get a good idea by how others feel about him. I can see how this system would be useful. What do you think?