If I ever suspected a correspondent of using something like this, they would be dead to me.<p>I appreciate a human-generated bump now and again, because it is a signal that they continue to care about what we were talking about. But automatically sending me message after machine-generated message to prod me into doing whatever they wanted? With no effort or intervening social judgment? Fuck that.<p>For people to whom this appeals, I'd suggest my approach: keep a "pending" list. If you haven't heard back and still care, you can always take the 30 seconds to say, "Hey, have you had a chance to think more about this?" or whatever the contextually appropriate thing is.