My major sources of spam traffic are Chinese and Indian residential and mobile IP blocks. So there's that.
Second, everybody screamed loudly when they were cracking down on file sharing traffic. You're saying spying on the citizens is ok when it's for this little reason over here, but not this one over there. It doesn't track.
Not to mention most ISP abuse mailboxes are automated these days because they are flooded with LLM-generated reports from "security" grifters.
The tech industry flooding the market with countless IoS (Internet of Shit) devices didn't help. This has moved way beyond accidentally installing spyware on your PC. People are intentionally bugging their homes with these devices.
I understand the FCC is trying to crack down on this stuff - starting with routers - but of course that gets pushback too. You can't win.
There's no spying required. The NSA and ISPs can find open proxies through infiltration and report them to (e.g. [email protected]), then Comcast simply has to act on it robustly.
ISPs already deal with abuse reports like this, the system just isn't being operated comptently.