One simple but strong word springs to mind as a response to this question: I DON’T. I have finally become smart enough to understand that the best response to angry, negative feedback is not to respond at all.
I can repeat or clarify a misunderstanding. I can attempt to reconcile opposing viewpoints but usually someone who is closed to any other opinion is the very person to write a negative response. If they refuse to engage in positive dialogue, I don’t bother bashing my head against the wall.
Often an angry person wants to engage in a verbal fight. In fact he is purposefully antagonizing me. After living with teenagers, my husband and I quickly learned how to diffuse angry confrontations because they were unproductive. Angry feedback always reminds me of teenage outbursts. Here is a typical encounter at our house a few years ago.
“I’m out of here!”, he bellowed, “and don’t expect me to come back!”
“Oh, I’m not worried. The only place near enough to bike to is one of his buddy’s and they don’t feed kids over there. He’ll be back when he is hungry enough.”