This is the main issue I see right now as well. I created my own instance for my account to live on, just so I know it will be there as long as I want it to. But that doesn’t do anything for communities I’m subscribed to that could, potentially, be on an instance that later goes down.
I think communities of similar topics are going to need to coordinate in the long run, and perhaps run their own instance to house their communities. This way the folks running the community and the folks hosting it are one in the same. You’d have instances that mainly house users, and perhaps a community or two. That’s where most folks would have their main account. Then you’d have instances that mainly house content, with few users besides the moderation/admin team(s).
Wasn’t Soylent Green algae based at first?