Uhm, you are right about this; my mistake. I focused too much on winning the debate. Apologies to everyone.

I still think that the benefits of publishing PUA advice are probably higher than the costs, but it would be difficult to defend this claim. (We would need to get data: how many clueless frustrated guys finally got their relationships right; how many naive girls were pumped and dumped by mentally unstable guys with pickup skills; the further impact of both on the society; etc. And even then we would have to make a value judgement about how much we care about a damsel in distress versus an expendable low-status male.)