How about caching RSS/atom feeds like ActivityPub servers already do with ActivityPub accounts? My use case is very simple, I want to be read by ActivityPub users without having to narrow my platform choices to ActivityPub blogging platforms.
Users would add RSS/atom feeds like they would subscribe to an account and could hopefully share blog posts without ActivityPub, e.g. by copying the post contents and adding a link.
@BonfireBuilders #bonfire_request