"I understand if someone cold cases you for an internship and you cannot pay them but they want to learn and have some position in your company it's a bit more acceptable. But essentially if you send out job postings for interns you support a systematic evil in the job market of the US. These people have no choice but to work for you if they want to work in their field, and obviously no choice but to do so for free."

Wow! You're telling me that if I send out a job posting for interns, not only am I supporting a "systematic evil in the job market" but they have "no choice"? Really? First, what systematic evil are you referring to? Second, nobody is holding a gun to their heads. They have a choice. Do you want to give up some of your time for a chance to learn something? Yes or no. There's no duping involved. It's laid out. Also, at the end of the post, I clearly state that anybody offering an internship program SHOULD offer some sort of fiscal or other reward if the intern performs well.

As for the line you quote: in context, it's written from the perspective of the intern - not the employer. I'll concede that it wasn't entirely obvious, though. :)