@marti @dansup This comes from a social networking perspective inherited from sites like Facebook where you must have an account on every site. E-mail, for instance, does not work this way. XMPP does not work this way. If your emails were dropped by your recipient's mailserver because they didn't have pictures you'd be furious.
The ideal would simply be the ability to see everything from every software, or at the very least the ability to see everything else from all the software that isn't "publish-first" (PeerTube, Micro.blog, WriteFreely, WordPress, Ghost).