After seeing PatrickHarnett's thread
about a credit rating system while having Accelerando
open in the tab next to it, I got to thinking about the reputation markets Charles Stross writes about in the book.
Why not try for a constantly updated efficient market model for reputation/credit ranking based on crowdsourced information?
I'm still trying to wrap my head around a method that would work without allowing the negative incentivizations people may have in trying to tank someone's rep to buy in low and then wait for them to build their rep back up to sell high.
People have had similar ideas
It would be an interesting experiment IMHO, and I'd love to hear any ideas about how to make this a reality.