absolute or relative identifiersI think all identifiers should be absolute URIs. If we are talking about actor and collection IDs, ActivityPub requires them to be "publicly dereferencable URIs": https://www.w3.org/TR/activitypub/#obj-idRelative identifiers are theoretical artifacts of JSON-LD processing that won't be understood by most ActivityPub implementations. The only exception is as:Public, short for https://www.w3.org/ns/activitystreams#Public, but even those are not universally supported.-----In the section "Privacy level", the FEP still refers to levels by name (followers and everyone https://codeberg.org/petitminion/fep/src/commit/95fd73232dd1d8f95e6731ccb4ebbc79c5a2e330/fep/be68/fep-be68.md#privacy-level