I think there are good reasons to not let corporate interests join the space we built to escape them, but I guess every instance is free to (de)federate with whomever they want.
So let’s say my instance (mander.xyz) defederates from Meta but another Lemmy instance that meander.xyz federates with (let’s say “misguided.ml”) does not. What happens when someone from Meta comments on a post from misguided.ml and others from misguided.ml comment on that comment? Will I see the comments on the meta comment, but not the original meta comment itself? Or will I not see the entire thread?
I wish that all federated software had an easy way to migrate your user, with all and posts, to another server whenever required. That way you’d be able to jump ship elsewhere if you disagree with your current admin’s defederation policies. Mastodon is really dragging the feet on that one, and both Lemmy and Kbin don’t even allow exporting your list of subscriptions yet.