[ZeroGravitas]

Atom feeds also had the concept of a "via" link which would be used to give credit to the person you discovered it via.

[harryvederci]

That's more like sharing a post and including its source. In twitter terms: retweeting.

What I intend with the "/following" endpoint example is to say: "Here are some sources that I think publish worthwile content."

Not: "Here is an interesting individual post, which I got from $source."