With all of the free Internet e-mail addresses available (e.g., yahoo, rocketmail, hotmail, etc.), a friend of mine has set up an e-mail address with one of the Internet e-mail systems which he uses for "public" postings, while keeping his "personal" e-mail address private. He says that is a convenient solution to the privacy concern while still permitting him to receive e-mail traffic from people who want to respond to something he's posted.

It might be worth a try for those who have similar concerns. It is hard to communicate, even in good will, with someone who does not reveal an address.