Reading some of the info and feedback from Michael Kleef's original post is interesting, I see a lot of good points to be had. I think we can all agree that users need to show a level of accountability as obviously even the most secure OS can be compromised when users use poor judgement.
Is that the users fault or the OS's fault? That I can't say, but an average user doesn't want an OS to be locked so tight that they can't have their normal level of comfort and ease of use. So where do you draw the line?