I don't get why Steven Z. would need to "cease and desist."
He's speaking from experience, explaining that there's a lot of manipulation and exploitation out there and strangely catches heat for it for not being part of the groupthink. I got the same type of bogus jobs offered from unscrupulous recruiters, and when I went on careerbuilders, linkedin, and other websites, attempting to "network" as I was advised to do, I got caught up in a rat's nest of spammers and scammers, despite my earnest attempts to find a decent job. It was hard to believe I couldn't get a position that matched my interest and background, with a PhD, 20 years of publications, and good recommendations.
Sure, the forum agenda is to help people get jobs, so there has to be a positive tone, but to scold the guy for advising people about potential bumps in the road (learned the hard way) is really odd and a little disturbing.
You'd expect Science magazine to foster an environment that was a little more heterogeneous in terms of its opinions, or are they tortuously trying to drag more people into the maelstrom?