The way I use the term, a company which engages in patent trolling is a patent troll. That seems natural to me, but I apologise if that’s unorthodox use.
I think using the ITC as the forum of choice for patent disputes qualifies. I can’t see why the courts can’t handle this. The federal agency that makes sure the windshield wiper fluid I put in my car is legit isn’t really set up for evaluating complex intellectual property disputes on medical devices.