This is the future that Gibson wrote of all those years about. Largely dominated by megacorps, but with fringers nipping between the gaps. Maybe it’s better, since the fringers are one step ahead for now, and although Twitter is a corporate entity, it’s going to be very hard for them to shut down clever use of their service. Some people may setup alternatives, indeed there is much talk of darknets.. but they sound more like ghettos than areas of freedom. The biggest freedom would be to break the centralised nature of DNS.. and boy would that be both liberating and (from an architecture point of view) scary.