@prahou @stefano @rqm This is why I wish #ActivityPub used the References header like SMTP, not just a simple In-Reply-To parent link. It would allow instances and clients to keep threads together even when there’s an unreadable post (whether due to visibility, blocking, unreachable instances, or anything else) in the middle.
Perhaps the #W3C and the instance software writers could extend AP with that? It would help making AP less unusable in practice.
