What I'd be willing to pay for is the storage of only select notes. I'd like to specify which notes to save in the archive by tagging or bookmarking. I want to pay by the note, or by the amount of data. I want to archive my own select notes as well as select notes of others.
Discussion
I mean notes are very small so I don't think any paid relay is going to make you choose. Would be interesting though if they could be pinned but I guess that's needs to be a standard, not something a single relay can offer... Unless they provide a web page for you and put em there.
I want to dig into bookmarks. I feels there's some good signal there.