@dansup ActivityPub is - like SMTP - a protocol, I agree. But as we can see with SMTP, Tech Giants like to shape or enhance these protocols to their liking, and not for the best of the (common) users but their best. So I would stay vigilant and would like to make sure that all add-ons or enhancements have to be public and useful for _all_ participants, not only the centalized giant ones.