Absolutely you can, but expecting a completely new user to even figure out what it means to do so is a big ask. Some users can’t even figure out how to login using the app.
From the viewpoint of user adoption though, it just doesn’t make sense to me to present new users with what is likely to be a very sparse “social network”, unless they have registered at one of the top 3 instances (something being discouraged by at least one of these top 3).
Ah, if that’s the case then that does make more sense. I admit I’ve been looking at this from the perspective of finding a public alternative to reddit, rather than a topical collection of forums.
With potentially millions of other users also looking for such a solution, I’m curious to see whether this movement is embraced.