Thank you Csound for being so willing to support me as I take a step toward your camp...
Having read this discussion for as long as I could tolerate it, you'd think we were talking about guns not a "bounce message" function. Yes, the bounce feature can be abused and Yes, the bounce feature can be useful. I can't believe how acrymonious the tone of this discussion became.
We're all adults here, are we not? If someone wants to bounce a message back to sender who has been excessive, indiscriminate, abusive or inappropriate, then I think most adults can judge whether or not it's warranted. Discretion, when applied, should protect against "bounced messages" contributing to some larger issue of unregulated SPAM.
Similarly -- bouncing is NOT a cloak of invisibility and won't safeguard against ALL spam or unwanted emails. Again, education, understanding and discretion will go a long way when trying to address the ever-escalating rate of techno-harassment.
I would certainly like to thank those posters who have maintained some decorum and have filtered their own personal views in the interest of informing those of us who were not as aware of the tensions associated with that void where the "bounce" icon once resided. I appreciate having the know-how to bounce and the caution against its use. From here, I will make my own educated choice about that void in my toolbar.