@grishka it sounds like you are thinking of a different use case than I understood from @liaizon 's top post. I thought the idea was that when you go to a remote user's profile on your own instance, you can see their followers. So the intention of the initial user is already there: click followers link in a remote user's profile.

In this case the remote instance should just be another data store for the one the initial user is browsing at the moment.