I believe that any posts and comments that were pulled and stored on your server will remain but new posts or comments will no longer federate. I’m actually not sure if new posts would be possible at all but you could always test it by setting up 2 servers.
So if I made my own Lemmy instance, and subscribed to !selfhosted, does that mean if Lemmy.world went down, the !selfhosted community is still up?
I believe that any posts and comments that were pulled and stored on your server will remain but new posts or comments will no longer federate. I’m actually not sure if new posts would be possible at all but you could always test it by setting up 2 servers.