Joel's really vocal about Yahoo!Answers, which is not fair to Yahoo!Answers. It's a huge site that caters to a broad base of users: take this question from a user

Why do universities cost more than community colleges? http://answers.yahoo.com/question/index;_ylt=AukI2XODG.mO_QE...

It's just a question, picked from the front page.

It's a legitimate inquiry. I don't see a "what do penguins eat?"

More important question is what is Joel Smoking? What are his investors smoking? To let him make such off the wall assumptions.