@dansup I like what you are doing though it doesn't benefit me as a WordPress user that I can tell.
Another use case would be having a link to an onboarding tool on profile pages, which could be tailorable for instances.
It could see someone not logged in, and given them the option of creating an account on the instance, or another instance.
This might even help with distributing new users to other instances.
It's a thought.