> You are jumping to conclusions. The pool tracks liabilities with absolute precision. The value add for the pool is that expiring ecash forces users to exit their position and claim their rewards. This allows the pool to zero out their liabilities in a rolling time window fashion.

This isn’t a unique feature of ecash. The pool could do this today if they wanted. Similarly they could not do it in an ecash system, if they want.

> FOSS means I can build this once

True, and to be clear I think this is something that should be built and would be great for the mining ecosystem unrelated to ecash! If miners start doing monitoring locally pools can track less things and that’s better for everyone. I’m still very skeptical that the last step of jumping to ecash-based shares is useful.