I unchecked that box a LONG time ago...I hate it when I can't see exactly what is there. I always show the 'detailed' view of all directories, so that all data and settings are clear...I can hide or change anything I want IF it ever seems temporarily useful to do so....I truly hope this set of recent problems does no lasting damage to anyone, and encourages those who had a scare to go through the process of protecting themselves and learning as much as they can about their computers. Basic virus protection and control over settings and features is just good insurance.
It's sort of like your car...you don't have to be a mechanic or understand physics to learn to change the oil and check the water level in the radiator.(maybe catspaw has better metaphors!)