I was just poking around the site, since I had recently reviewed the site terms and was curious how an "essay writing jobs" section was possible when rule #9 prohibits "advertisement or publicity"... which I rather suspect stems from my other thread here, about who owns this site.
I believe this thread does not, in fact, violate the terms of use. I'm assuming WB was referencing that same rule, which states the site "is not a place for advertisements or publicity"... but I certainly have no idea which company is being advertised here.
It seems to me that a man is asking questions of the writers who frequent this site. That sounds like a pretty good match with the description of this section: "Discuss professional writing issues."
Perhaps a more constructive approach would be to ask whether any conclusive results might be shared. I won't take the survey because I'm not a writer (I'm a programmer, I'm here out of curiosity because a writer friend told me about all the arguing and controversy, and I found some of WB's sleuthing to be intriguing) but I paged through some of it, and I can see how the results might be interesting to everyone if the survey gets enough replies to draw any useful conclusions.
Just an idea.