Some things in here I'm very eager about, like making the act of subscribing to someone else a lot easier. And then there are others that lead too much into the need of "we have to make it easy for the sake of being easy" and eliminates some of the strong protections that things like federation (or just non-centralization of services) can provide: like anti-abuse targeting, snitch-tagging and the like (all of those are easier with a global namespace but not impossible without, just a bit more difficult). I think, also, the need to have a global 'beacon' leans into individuals wanting to be heard all the time - which is useful for activism (but truly, that itself is possible in a world without a global namespace, we do it by actually carrying the message across - not relying on a one-click solution to do it).