@jebba @Are0h the problem with that as a default for fediverse instances is that it makes siloing, centralization, and network effects far easier. If you make instances siloed by default, it kind of defeats the purpose of federation allowing people to freely move and associate without necessarily having to leave their whole network behind, because the *default behavior* would then become that if you move instances you'll be disconnected from your old instance — and thus forced to leave everyone behind — instead of that having to be a specifically-chosen special case.