The main hang ups I see, is the group that determines what counts as loss and how much loss each thing has. These would be the points of attack where the powerful would seek to undermine trust/effectivity/accuracy and manipulate this new system for themselves. There would need to be rigorous safeguards in place to prevent such perversions.

That said, I like the planned economy aspect but I also feel like it could be used quite well with a smaller scale, more anarchistic society of loosely interconnected groups.