There is a good case here to defederate every instance by default and only federate based on a white list.
There are criminals in the fediverse obviously and we should split from them immediately. Don't forget that their content is copied to the servers of Ernest automatically.
Again, Beehaw defederated 380 instances and it's not just because they disagree with their political stance, but mostly because of this kind of horrible content. Which will come from another new instance, and another, etc, etc. Which means that we need to update Ernest regularly to protect his servers. Or make the default setting as defederated.