Why are email viruses so popular? Because people are stupid. No other reason. If people weren't stupid, they'd use something other than an MS mail client for starters. If they're clued up enough to know not to use MS mail clients, then they're clued up enough to be trusted to find out about the rest.
You know, I can sit back and watch as people who pretend to be know-it-alls are proven to be idiots, but you're calling 75% of the computer users today idiots, which just ain't right. I personally know people who would fit into your "idiot" classification who've accomplished more in three weeks than you probably will in your lifetime.
Half the reason people don't know what they're doing, much less care, is because Microsoft has created a facade that is Windows which has them believing they don't NEED to know anything about computers to get done what they need. And I'm not talking in this case about writing a piece of software or playing a flashy 3D game. I'm talking about work that has to be done, for example, to get a child abroad here to be with his father and mother. People simply don't have time like you do to sit and play with a computer until they know enough not to look like an idiot. To some people, sitting at a computer all day is about as much fun as watching their dishwasher wash dishes. Computers just happen to mean more to you, yet you hold it against them that computers don't mean as much to them. Back off, chill out and quit being so critical. I'm sure there's a dishwasher expert out there who'd call all of us idiots, given the chance.