beehaw and sh.itjust.works just rub me the wrong way during first impressions
They're pretty descriptive: do you want a place to "behave", or would you rather fling shit at each other?
This isn't Reddit, you get to pick your experience. Can even sign up to more than one instance, each with different rules!
We also need super-communities that pull in content from multiple communities/instances
Apps do that, including some web app.
Search and migrations could be improved, though.