Comment by logological

This is hardly unprecedented -- in fact, it looks like the US government has learned a thing or two from the anti-spam community. If you actually want to block e-mail or newsgroup spam at its source, you don't complain to the spammer themselves, but rather to their mail/news provider, and if that doesn't work, you escalate the issue to the upstream provider, the hosting company for the spammer's website, the registrar for the spammer's domain names, and so on. This is time-consuming but is sometimes effective. (Of course, dedicated spammers may then switch providers, or start employing distributed botnets of zombified residential devices, but knocking out their infrastructure at least temporarily does disrupt their operations for a time and drives up their cost of business to the point where they may reduce or even cease their activity.)