HN's karma system is a sort of "incentive superficiality", yet it seems to work well enough. Perhaps a similar model of collective peer review could be applied

HN's karma system is a sort of "incentive superficiality", yet it seems to work well enough. Perhaps a similar model of collective peer review could be applied to the work place. It might address some of the injustices that Joel mentioned, such as the strategic thinker whose insights weren't recognized by management, but valued by his peers. Would you be willing to "up vote" your colleagues?