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I'm not sure where the accusations of arrogance against Bernstein come from. I've never met the guy but having studied his code I would say, if anything, his programming style exudes humility. He doesn't trust client software, he doesn't trust the standard libraries and he doesn't trust himself. I think if you look closely at his "style" (for want of a better word) you will find a lot worth emulating.
Personally, I still use qmail and tinydns on my own boxes, where appropriate. At work I don't have any problem recommending his software either and have used qmail for projects relaying over 8 million messages a day without issue. Saying it "doesn't scale" is, in my opinion, untrue. Or at least misleading.
Anyway, djb, I for one salute you!