Yes; to my shame, one of aforementioned people who will go to such lengths to infect their own computer is on my friends list and had a go at me for complaining that people who open this kind of thing should know better:
http://www.livejournal.com/~feanelwa/398145.html
Nooo. I am so ashamed.

There's a difference between being stupid and being ignorant, I suppose.

Wilful ignorance is equivalent to stupidity for practical purposes.