Well umm look at the demo and you would have to be an utter nob to click something you didn't want to download. My response was as follows:
"WTH. I do not want a free coupon. Where is this crap so I can burn it."
Couple it with phishing and most users will click. It's even more dangerous in case of a reputable site being hacked OR catching a virus, like the one distributed with one of FF language packs a few moths ago.
Bookmarks