There is the permaweb that runs on Arweave…

A bridge charging sats per megabyte upload that is then used to pay for imprinting it should be easy to set up!

Maybe there could even be an automated solution where that site gets access to then publish a note directly with the link included…

Guess that the conversation will be an event that leads to direct liability though, so until someone sets up atomic swaps it would have to be small scale & curated