Interesting. So ActivityPub could support that use case, but currently doesn't. Combined with the fact that getting changes through to the specification itself

Interesting. So ActivityPub could support that use case, but currently doesn't. Combined with the fact that getting changes through to the specification itself (maintained by W3C), I could understand not wanting to spend the energy and effort on trying to go that route, and instead come up with something different. Thanks for sharing your article, lots of good points in there.