I prefer Usenet to email, because a) it gets permantently archived, b) others can observe and learn, and c) an audience is sometimes useful for resolving impasses.  The main disadvantage to Usenet is that some people are more prone to get nasty if they start losing in a public debate.  That's really the only time I like to take a debate offline -- to let somebody cool off.  (For example, Paul Filseth has never even acknowledged my three private emails rebutting his public charges of my incivility. He seems to realize that his petulance would be pointless if I were its only audience. :-)

So, we could debate in a.a.m. and you could just ignore the 80 other people, or if you like we could take it to (say) soc.religion.christian, where there are far fewer atheists.  Or, you could continue to send me your comments directly and I could continue to post my replies publicly but without naming you.