Some people, believe it or not, are still rather smart - computers just confuse them. They don't understand how they work. This does not mean they are unsuccessful. You should see AOLs demographics. I can't find the link right now, but you would be suprised how many were college educated.
Some do not understand pop ups and redirects. They think they did something that caused it. Not everyone is like this, but I used to work with installing cable modems for customers, and was suprised at how many people had no iidea what they were doing. One women would had one of those clipboard attachments on her computer - she told me she used it to right down things she found that were funny on the internet. THEN SHE WOULD TYPE IT BACK IN TO SEND IT TO A FRIEND.
She had no idea about cut and paste. When I showed her she acted like I was a rocket scientist. She really was a nice lady, and didn't SEEM stupid. Just never thought about that I guess
