ActivityPub outboxes are the new RSS / Atom / WebFeed.
You can just read from them to get a JSON feed of someone's posts.
I.e., you do NOT have to implement the full suite of Fediverse protocols, or Follow, or run your own server, or anything else to get someone's posts on the Fediverse — just read from their outbox.
@revoluciana I love it when people I follow on Mastodon has a webpage and blog with RSS support, that makes my day!
The Fediverse's usage of rel-self in WebFinger, to point to an ActivityPub Activity file (application/activity+json), seem different than how Atom feeds uses rel-self.
The semantics seem different.
(I am assuming ActivityPub borrowed rel-self from Atom feeds.)
