meh, I doubt we'll ever see him again. Though, I could see him trying to come back as an alt.
To me it speaks to his confidence in his own assessment of what we are doing. I'm sure he knows he really doesn't stand a chance to outwit the group or to validate what he wrote with us in any manner. The fact that he has no mechanism for contact on his website, to me, speaks volumes about his confidence in his material.