There is really no way to do that, since these information are stored physically on different servers. So there is no way a disappearance of one server can force another server to delete the content.
This also leads to a disadvantage of the federation, when you delete your account, your instance (probably) will ask other instances to delete your post, even though most instance will do so, but there is no way to enforce the deletion.
There is really no way to do that, since these information are stored physically on different servers. So there is no way a disappearance of one server can force another server to delete the content.
This also leads to a disadvantage of the federation, when you delete your account, your instance (probably) will ask other instances to delete your post, even though most instance will do so, but there is no way to enforce the deletion.