Do me a favour, ask 10 non-developers or IT professionals tomorrow if they have installed Windows 8 (or even used it) and tell me if that is 17% or 83%
What do non-developers have to do with responses on a developer site questionnaire? And for that matter, what makes you think those responding have to have installed Windows 8? There have been scores of developers telling everyone for ages that Windows 8 on a desktop is going to be unusable, many of whom hadn't even installed it on a desktop.
@cbae: No, that's the pinned shortcut area of the Start Menu. The Start Menu is everything that shows up in that rectangle that appears when you click the Start button (or Orb or Pearl or whatever they were calling it last)