I like this idea, would probably do well if proposed on the kbin codeberg as well.
I really hope we don’t force users who sign up to pick one of a few preselected communities to subscribe to. No Skip button, no option to search for other communities, you must select some communities from this small list in order to move on. I’ve seen the same pattern in habit tracker apps with preselected habits instead of communities, and likely in other contexts that I’m forgetting right now. Walk the user through a tutorial to get them up and running as soon as possible, but no option to skip it or customize anything if you’re tech-savvy and don’t like the default options, and don’t need to be handheld through. It was always incredibly annoying.