The shape of a comment
The widget turns each comment into one BAM message. It carries the post it belongs to, an optional parent (for replies), and the body — enough for any reader to reconstruct the thread without trusting the server that showed it.
Streams from different sites stay isolated by a per-app tag, so many blogs can share one poster without their comments bleeding into each other.
Threading is flat on the wire and shaped into a tree on read, so each client picks how much nesting to show.
Comments