puckipediae.g. if server a.example.com gets a {type: Follow, object: "b.example.com/a", to: ["b.example.com/a", "b.example.com/b"], actor: "a.example.com/z"} it'd add user Z to A's follower list twice
puckipediashould I only process server->server side effects (adding an activity to likes/shares collection) when the activity is received by the /owner/ of that object