The ISP in general isn’t going looking for your torrent traffic. The DMCA groups are, and when they find it, they contact your ISP to enforce it. If it’s a private tracker, there’s a decent chance the DMCA groups’ tracking bots aren’t able to see that traffic.
Aren't some ISP in the US owned by media companies? For those there would be a clear incentive to scan their customer's traffic for copyright violations, right?
