@andstatus @thefaico @archaeme Global IDs are definitely desirable but would be difficult to pull off without collissions unless you just did it namespaced by instance (which seems a bit like cheating and not really what you want).
Improving transparency of remote notices and users is a good idea that I've been working at on and off but it's a complex problem since the current federation means is not very good at detecting and tolerating faults.