what are the use cases here?
I've wanted something like this for a while. S3 Requester Pays kind of achieves the same thing but requires the requester to have a funded AWS account.
I could see stuff like how some B2C things sell stuff like PDF, videos, tutorials, at a flat-fee, but usually B2B enterprise ends up with a metered pricing so negotiating that could end up with many dynamic urls which sounds like a giant mapping table on top of the protocol
This is a fair way to allow AI scraping too: you can let bots scrape as much as they like, as long as they cover the cost of serving that content. The bots don't have to enter payment information into every website they want to scrape.