I’m hoping that as the platform matures and we start seeing various apps and even more web-based interfaces like wefwef Voyager, the signup process will be handled by those apps themselves. Like, a bunch of instances agree to be listed or something, and the app randomly selects one to present the new user on signup as a default, which both distributes the “load” across instances, but also provides a simple default.
I know the above proposal has problems; it’s a 30-second spitball idea, not anything I’m spending more time thinking about seriously.