I think you are the one who does not get it. Unless Beehaw completely defederate from everyone, posts on Beehaw is a part of the federation, meaning all federate communities that beehaw agrees to connect with.
This is why I said the whole defederate/federate thing Beehaw people do not seem to get or do not want to understand. You are part of this, we are not part of you. If you want your own community, commit to it and disconnect. If you want the benefit of the federation, you do have to work with other and deal with consequence.