As a Linux user who spends very little time in Windows and does not usually give many fucks in that regard, I'm still having a lot of difficulty keeping my face and palm separated every time I see a post about Microsoft not wanting to use Windows 8 to demonstrate XBox One games. There could be many reasons for not using Windows 8, such as the fact that certain divisions at Microsoft may not have made the transition to Windows 8 yet or they were only given permission to modify builds of Windows 7. It's not unheard of and some presentations after the release of Windows 7 were given on *gasp* Windows Vista! Just as that would never imply that Microsoft prefers Vista over 7, which would be pretty stupid, this doesn't imply the same of Windows 7 and 8.
Uh, I mean... yay, let's all hate on Microsoft for whatever reasons we can grasp at!