Some tasty ruminations on Whuffie and how it could apply to the real world from X, on his blog:
It just occurred to me society could use Whuffie for good incentive, for example, when you go to the doctor you get a point for regular check ups in your health whuffie, (heh, my whuffie is a little flat on that one), and if you choose the doctors check-up results would give or take WUPM. Your credit rating, portfolio, liabilities and assets would all tabulate in a financial WUPM, for the less fortunate they could accrue financial WUPM based on movement, like a business venture,education or the ability to create wealth, kind of a curve to keep the wealthy from having to unfair and advantage and giving those disadvantaged incentive to accumulate Whuffie through forward motion.