Also explicitly refers to mangling your e-mail address so that usenet posts do not contain a valid e-mail address for spammers to use.

Responses which are to be e-mailed back to you then require manual intelligent intervention by the sender, to de-munge it.

For example, changing the 'sender' in Netscape to JohnSmith@NOTAREALHOST.com, and placing a note in your signature to replace NOTAREALHOST with theRealHost.