I now see the possibility of enabling every npub to issue their own ecash tokens, instead of relying on a third-party mint. This has tremendous value because every npub can issue its own transferable credit notes (cash) and eliminate the mint as a counterparty. Of course, it has to be trusted, but if I trust someone already, this should not be an issue. As well, every credit note has an immediate credible exit - it can be cleared out immediately via lightning.