@bndekker, no doubt you're correct, for the most part. But he didn't ask if automating bounce made sense; he asked how to do it. When you go for a haircut and give your stylist specific instructions, you don't expect her to lecture you on what an idiot you are for wanting such a haircut. When you get on an auto repair board and ask for instructions on fixing your carburator, you don't expect a lecture on why fuel injection is better; you expect someone to provide some assistance with fixing your carburator. When you ask a trainer at the gym for advice on some good chest exercises, you don't expect him to tell you that you shouldn't be working your chest, but should instead work on calves and quads.
You don't automate bounce, and you never will, and that's fine. But you don't know someone else's context, and how it might actually be very useful for them. And even if all it does is exacerbate their current spam situation, what's it to you? It's their system, they can do what they want to it. There has been more than enough warning on this board.
By the way, here's an example of why automating bounce might not, as you suggest, always and forever be a useless and bad idea, no matter the circumstances. I stay away from my mom's side of the family; many of them are awful, criminal people that I don't want involved in my life, or my kids', or even knowing where we are. Those that aren't terrible, dangerous people constantly enable those that are, and share information about me and mine with those people, and as such are just as dangerous. Somehow, that entire side of the family got ahold of my email address at one point. I do NOT want that. So I bounce. And you know what? They're persistent, dim-witted people, at least when it comes to bounced messages. It takes more than once or twice. It took a good while for me to stop getting messages from them. But eventually, it worked. They finally got the idea. And when they contacted my mom to get my new email address, she had instructions from me to evade the question and under no means give them that information.
So you see, there are situations where it might be useful. I may even use it myself—so that if I EVER get an email from ANYONE on that side of the family, at ANY of my email addresses, it immediately and automatically bounces, and it does so as many times as necessary.