While I agree the numbers seem low, its not because 'computers are scanned when they go online'. How many people these days connect their computer directly to the internet? Most machines are behind nat, which while not a complete security measure any any means, it does off protect for out side scanning.
Infections mostly come from browser based and download/execute attacks.
No. Much to do about something. Apple fan boys love to scream that apple's jsut work when the reality is they have been plague with their own problems all along. As the SLN skit says... crash different. Yet they sold the idea that they were so simple that stoned high skewl girls and douchey hipsters could become heros in a see of windows machines. There is something to see here. That undeserving smug smile smacked off apple fan boys faces.
The hardest part of climbing the ladder of success is getting through the crowd at the bottom.