In my experience (Score 1)

I work at a big company and it never powers down, I lead the graveyard shift and every night when I get here on the way to my "office" (box) I get to see more than 200 monitors displaying ugly screensavers. It is my policy that if I see a computer that's on and it doesn't have a post it note on it saying why I just go and shut it off, the manly DOS way.