putting your email in the message is not that difficult, I do it all the time.
Buconero117
I included my email address in my last for sale ad and promptly received notification from Audiogon that it was a violation. They advised me to edit the ad and remove it. I removed the ad and sold the item through Audio Asylum.
End result is Audiogon did not receive their cut. I will check every avenue available before listing items.