Sadly, the attempts to control distribution of those numbers aren’t being done using copyright but are instead being done using the DMCA. Exactly what that law was intended for.
Update: Just to emphasise, if you want to complain about something then the first place to start is with the laws. Get in touch with the relevant politicians or support groups that work to oppose legislation like the DMCA such as the Open Rights Group in the UK. Trying to convince people to avoid exercising their rights through negative publicity can help but there are serious limits on how much it can help.