Mostly thanks for the relatively good FP, and it deserved the Interesting mod, but... Insight would have called for deeper consideration of the problem and Slashdot has no mod to encourage solution-oriented thinking. My anecdote below might qualify for interesting, but first a word about the solution approach I still favor...
I think someone (perhaps the police) should be collecting targeting data and trying to find the money. Cutting off the money would stop a lot of the scamming. Many examples, but I'm going to use email because it's the easiest one. In this story's scenario the victim probably has an email message from the criminals. I imagine a website where the email (preferably the full source with headers) would be submitted into a webform and then analyzed (presumably with AI these days) and the donwannabe (don't-want-to-be (but perhaps-already-a)) victim would confirm the details. Might involve several iterations of analysis and confirmations and the victim might even have to check into some details. For example, maybe the victim has forgotten about an earlier phishing email that triggered the attack, but could dig it up with a bit of guidance? Adding that email to the report might provide more clues for the investigation. However the important thing is that such a website could collect lots of data and direct targeting at the biggest criminals and focus on cutting the criminals' money flows.
Now the anecdote. Already a couple of months old, but I'm sure it was an AI GAIvator of a famous person. The email was beautifully written and really had me fooled, even after a couple of exchanges. The style was that good, but the only suspicious part was how quickly the responses came back. Not instantly, because that would have been too obvious, but within a day or two, and I became suspicious that our discussion could have such a high priority for such a busy person. So I checked via the celebrity's website and got confirmation that it was a scam.
Meanwhile the cops are chasing their tails and the criminals continue laughing all the way to the bank. Except when there are crooked cops who are wetting their beaks--but I better not cite that book I'm currently reading. I've already got enough enemies, thank you.