So I'm just high, know literally nothing about networking, and still don't have that firm a grasp of lemmy to begin with, but depending on the size of a given community reciprocal mirroring could be cool. Have a main host server, have several other servers mirror that, posts and replies can be done on a mirrored server, which then get sent over to the host server and in turn mirrored on the other mirror servers.

Would welcome the education re: why the above is dumb in either a general or lemmy-specific sense. But if such a thing is actually not dumb, it seems like it would get around the community-splintering issue re: popular general topics. No idea how the hell moderation would work though.