I love this story, as it is really good advice on how to catch psychos, it seems to me.
But there is a small catch, I think.
The catch is that we might not have all of the information a person is acting on.
People can seem to be doing and saying some really crazy things, if we can't see what information they are acting on.
Further, they might not be free to speak at liberty about the information they are acting on.
Does censorship or deliberate ignorance of such information qualify, as the actions of psychopaths, or maybe just folk looking to maximise profits for their platform /tribal division / social bubbles? (maybe that alone makes them psychopaths!)