As this is partially a matter of opinion I believe that the character and prejudices of jwz can be called into question in a relevant manner. He was once renowned as a wise and talented programmer. That was a while ago. He's most famous for negative and somewhat inflammatory opinions. I'm not going to say that I think his argument here is bad by virtue of that, which I hope excuses me from ad hominem, but I question the applicability and the degree to which his wisdom can be generally applied. There's few enough people who don't know something I don't know, but if this is one of those things then I'd like to hear a bit more corroboration of these opinions.

(apologizes for responding to you and not GP directly with some criticisms. I had a response typed somewhere...)