Most actual fraudsters wouldn't.

Of course they do. It’s just email/twitter/telegram/WhatsApp, and fraudsters are literally professional messaging automators. They open support cases, email execs, I have seen cases of them paying call center workers to call support lines and complain. Fraud is a serious business run by serious people, many of whom have a decade plus of experience.

You cannot attempt to stop fraud with manual effort if you operate at any kind of scale. Full stop.