> in the bowels of a preference menu
This is not the first time you've resorted to hyperbole in order to try and paint Apple in a bad light. It's not hidden anywhere. The moment you go to the Spotlight preferences, you see it.
What's more, the first time you see a search result that came from the internet, a) it should be obvious that means that your query must have gone to the internet, and b) the very first place you'd go in order to disable this behavior, the Spotlight Preferences Pane, is the same place that has this prominent button that gives you a detailed explanation.
> Not unhappy enough to subject myself to a Linux desktop, but Apple is making it closer and closer with every release.
It sounds to me like you're trying to invent reasons to hate Apple. This is a widely-advertised major feature of the OS (it was even in the WWDC keynote IIRC), with a very prominent warning explaining how Spotlight is different in this version of the OS and making it very easy to find out how to disable this behavior, with a very prominent button in preferences called "Privacy" that, again, explains what's going on and how to disable it. And yet you're trying to insinuate that Apple is trying to stealthily sneak in the behavior that sends your queries to them, without letting the user know, as if that was something they'd even want to do.