What if you could import and export subscription lists between different instances?
I'm not a programmer so I don't know how easily this could be done or how it'll work, but I had this idea while trying to manually move all my current lemmy.ml subscribed communities to my new instance.
I did exactly this today. I wrote a quick and dirty Python script to fetch followed communities from lemmy.ml and to follow those same communities on lemmy.sdf.org (the current instance I'm using).
I think I remember reading about an existing project which aims to allow migration of followed communities, users, blocks, etc. between instances. I'd imagine that would be far cleaner than my quick solution so it might be worth a look!
I'll try cleaning mine up though and I'll post it here just in case it's useful.