In terms of law enforcement, sure. But what we really need is competent white hat hackers doing battle with the black hats.
Even if no one goes to jail, the NSA could make residential proxies much harder to operate in the US simply by detecting them and reporting them to ISPs. It would be good for ISPs to then validate the reports properly, give warnings, etc.
A lot of residential proxy networks don't let you access financial and government websites because that would create an actual national security risk and get them shut down. So, given that, what is the actionable complaint?
Even if no one goes to jail, the NSA could make residential proxies much harder to operate in the US simply by detecting them and reporting them to ISPs. It would be good for ISPs to then validate the reports properly, give warnings, etc.