@z428 I'm very critical of ActivityPub for not having such features, and I have two thoughts about it.

Firstly, as far as I can tell there was a conscious decision to focus on instances. Many people very strongly embrace the patterns that arise out of the instance focus, the moderation, community, and inter-instance blocking stuff.

This human organization side of things is so obvious that I can't believe it wouldn't have been considered during standardization.

Secondly, when you look at the parts of the ActivityPub standard, things like use of http and certificates, it shows developers with a certain background grabbing certain pieces off the shelf that may not have been the most innovative parts to bring together.

Nomadic identity would have required a bit more thought than what ended up in ActivityPub. It raised some harder questions.

AP itself is inefficient and lacks anything groundbreaking. It's composed of off-the-shelf pieces that were cobbled together.

Frankly, AP seems to have been put together lazily, and the lack of portable identity reflects that.