Gold Man Sacks is an ethnic slur?

This post received the original mod note: http://boards.straightdope.com/sdmb/showpost.php?p=19479246&postcount=407

Here’s an excerpt:

This is in an elections thread, not the Pit. I perceive a thread of anti-Semitism running through that post and I think asking him to “…stop with that ‘Gold Man Sacks’ stuff” is reasonable.