Hi. Is there really a must to creat a general user account? Or the default account with password is enough? 90% of my software comes from Mac App Store, expect Steam, Perian, Flash and Nikon Capture NX 2. I download all of them from their official sites. Always. I don't have any piracy software. I don't use Java. Obviously, I don't give my password to anything that I don't know. What do you think? What do you use? Thank you!