I recently came across NanoBaiter on YouTube. He baits scammers and hacks their systems, often disrupting their entire operation.
He identifies the culprits in detail, scares the hell out of them, reports them to police, and tries to inform / refund the victims. In at least one video, he accesses the scammer's Stripe account and refunds the victims (often elderly) for their payments on bogus IT security products. I recall another video where gains access to the CCTV in the scammer's office building, and captures a police raid on the scammers.