The argument is that the hacker’s operational costs are massively dominated by the manual work of social engineering, so they have a huge incentive to filter ou

The argument is that the hacker’s operational costs are massively dominated by the manual work of social engineering, so they have a huge incentive to filter out people who are less responsive to social engineering. If you accept that some people are more credulous than others, it becomes the best strategy to optimize for only talking to people who believe you.