Never Mind
I was slow to pick this up, but I finally figured out that Wolfgang's reason for leaving was not the post I cited in the comments, but this one: 22 Comments If I may recapitulate the bidding, Cynthia asserted that the strength of the Israel Lobby in the US was due to the large number of Jewish Billionires, Wolfgang called her a Nazi, I chided him for preferring insult to fact and noted that the Israel Lobby had a large fundamentalist Christian component after which Wolfgang bailed.
Apparently he thinks any discussion of the existence of an Israel lobby is proof of Nazi sympathy.