I just had to say that most times, it's not the OS the culprit, but the user. They hand a computer to monkeys these days, it seems.
Not the first time I see someone copying things over and over again "for security purposes". OK, that's fine to have a lot of different copies for security purposes. But, at least, move them to another partition. I've seen a 500GB drive get filled with 60GB of data, and 400GB of copies of that same data. It was hilarious wiping data out of that drive. I even thought that was some kind of virus or something.
I've also seen desktop wallpapers behind a curtain of icons, guys saving icons to DVDs and thinking they've just copied the program, and people that think computer skills == cracker. Not the first, and it won't be the last time that they ask me "omg can you get this girl's Facebook password?", "ohai can you help me and hack my neighbour's wifi kkthx<333" or "heeey can you hack a bank like in the movies?". And when you answer a plain, polite "No, I can't, and even if I could, that would be ethically incorrect, I'm not a hacker, and if I were, I wouldn't be a black hat" they just say "OH YEAH? WELL BURN IN HELL "&"·%/(·$&!%"$·$%/!!".
It just amazes me.