Of course this works great in theory,
however, it goes against humans natural laziness,
and it goes against this... we don't have a word for it yet,
people like to feel that what they are doing is useful (need for feedback).
So, to make this work, you need a thing that provides the feedback loop. Something that indicates how much someone wanted/needed the item, and how grateful they are to have received it.
The current item used for that is money.
Computer aided barter may be better.
But, as you have pointed out, "keep working, stop paying" completely destroys the structure of the control system.
The neighbors will provide that feedback, no need for deceptive accounting practices.
What do we do when asteroid mining makes rare metals less rare?
Isnt the moon high in silver?
Better that we make incentives social rather than monetary, imo.
No worky, no nookie...
This idea from 1887.
The moon is high in titanium.
As y ou have prescribed, neighbors provide feedback. And that is great when you are dealing with a community. But manufacturing is global now. The feedback mechanism isn't there.
It could be that instead of blockchain being about "money", the future of it could be a bunch of "at-a-boy"s to the manufacturer from the users.
The rewards being social means that nobody can get laid without working.
Instead of using money that grandpa withheld from workers' wages two generations ago and buying a girl, you got to earn it yourself.
Instead of generational wealth making some live like kings while others live in the street, each individual has to make their own mark.
We have to have workers, we don't have to have dollars.