There's no "selling" of data. These are just connection logs kept as part of routine auditing/anti-spam/anti-abuse practice by the ISP (something we all agree here is a good thing). And ICE appears to have gotten a warrant for them, which showed them the personal IPs of their targets.

You can argue the warrant was poorly justified (and I'd agree!), but I don't see a plausible world where "ISPs aren't allowed to do connection analysis on their own networks" is going to help anyone. Well, anyone except spammers. They'd love that.