It sounds like you are proposing something like "zaps" (or positive reactions, whatever it may be called) as nsec-signed promissory notes (or alternatively, "votes") which are then redeemed by a separate, loosely coupled service attached to a lightning wallet. This would replace considering "zaps" as instant direct micropayments for "content".

It's certainly a lot of indirection and added UX friction for what should be a simple feedback mechanism, just to work around one company's insistence on being the middleman.

On the other hand this might create some interesting possibilities of many-to-many value-xfer streams.

For example:

• funds are paid into a multisig wallet

• the wallet owners register approved npubs who can endorse

• these npubs "endorsement zaps" are tracked and funded automatically (maybe up to some limit)

• or alternatively there could be some sort of periodic "top 10 most endorsed" funding or some similar popularity prize

• these wallets could be perpetual micro-Nobel committees, each formed by affinity groups, foundations, whatever sort of group of people who want to pool funds