I understand that, but why would you risk pissing off a group of developers, engineers, and hackers? Unless this system is totally automated, I can't see why any reasonable person would think "Oh yeah. This is perfect. Let me put my spam here."
They get the same benefit whether the site is for software developers, materials engineers, scrapbookers, the satanist chapter of La Leche League, or the Skifree Yeti. It's about search engines, not the site audience.
