Especially when their category pages look like this. Featured, sponsored, more featured, more sponsored, more featured, more sponsored, listings (some paid), sponsored, side sponsored links.
That is possibly the most disorganized commercial listing set I have ever seen. 15 ads by Google mixed around the 12 house ads and other paid and editorial listings. Why is Google indexing their own paid ads AND their own search results (look at the web listings here)? What makes that model legitimate? Just the domain name and scale?
Given Business.com's nearly unusable format, blatent content recycling, and recent abuse of nofollow why does Google continue to trust this site? Is this really what Google wants the web to become?