@gregory @ufoi "The Problem" describes "those who block an instance often demand every instance they federate block the same instances as them, and if they do not, then they get added to the suspend list as well".
I agree such "transitive defederation" can be a problem when taken to extremes. To be honest I haven't really seen it happen "often" and without evidence, but possibly I wasn't paying attention.
The solution would be simply to "stop doing that", though :)