Think of it this way. All bans and content removals are local only, and don’t federate to other instances, with a few exceptions
The most notable of these exceptions are
i) a community moderator removing content or banning a user from their community. This federates. An instance admin doing the same thing does not federate, unless the community was created on their instance.
ii) an instance admin banning a user based on their instance, and choosing to remove all of their content. This will federate the ban and the content removal to other instances.
Think of it this way. All bans and content removals are local only, and don’t federate to other instances, with a few exceptions
The most notable of these exceptions are
i) a community moderator removing content or banning a user from their community. This federates. An instance admin doing the same thing does not federate, unless the community was created on their instance.
ii) an instance admin banning a user based on their instance, and choosing to remove all of their content. This will federate the ban and the content removal to other instances.