This is anecdote, but my Win8 crashed just this morning, when I unplugged my mouse from one and plugged it back into another USB port. It dumped memory to disk

This is anecdote, but my Win8 crashed just this morning, when I unplugged my mouse from one and plugged it back into another USB port. It dumped memory to disk (with nice progress indicator :)), restarted and booted perfectly ok, just asked me if I want to send the data about the crash to Microsoft. It never happened before and I don't suspect it will happen again this or next year, either, but - it sure happens :) As a similar anecdote, two days ago my Xorg server crashed. Not WM (E17) mind you, but X server. It was running continuously for about two months, was eating more and more RAM and finally, when Chromium froze and went on a RAM eating frenzy, the server crashed. It was the first time I saw X server crashing since I fought with enabling compositing in XFree on PIII 1Ghz, but still, it happened. So, what I want to say is that no software can run flawlessly forever; it's just a question about how often (or how rarely) the crash (or other malfunction) is going to happen. 0.28 bluescreens per month per user is a pretty impressive feat and it's says more about how good than how bad W8 is.