@cwebber Contemplating on correct implementation of a data model, corresponding to the #ActivityPub specification, I started to realize that current version of the document https://www.w3.org/TR/activitypub has a gap/confusion of two different notions: Person (one of Actor types, see https://www.w3.org/TR/activitystreams-vocabulary/#dfn-person ) and a User of a server (quote from ActivityPub spec: "users are represented as "actors" here")
Actually these are very different notions: a Person may be represented as more than one User, on different servers. And a User may represent not a Person, but e.g. an Organization.
?!
@clacke