Why not respond to the scammers automatically? You could put together a library of responses, use machine learning techniques to choose a response based on the

Why not respond to the scammers automatically? You could put together a library of responses, use machine learning techniques to choose a response based on the spammer's initial email and recent message, and really put a dent in their productivity. You could even send out spam messages of your own or resend the spammer's initial message and harvest the responses to use in the library. It would be easy for Google and other email providers to do this with their collection of abandoned email accounts.