Certainly there are some users who don't even know how to use Finder and need help composing an email. However, for anyone who has progressed beyond that neophyte stage, practicing safe computing isn't a complex or tedious thing to do. Make a one-time adjustment to a few settings and avoid doing very specific risky things, such as installing pirated software (the majority wouldn't even know where to look to find pirated apps). It's really not difficult for anyone who's advanced enough to know how to install an app or enter a password.
Simply viewing a flash video can compromise your machine. How do you propose someone practice "Safe Computing Tips" around that issue?
If a mainstream site like Forbes can have its Flash advertisements hacked to deliver malware to users, how could you possibly blame the users by suggesting "Safe Computing Tips" could prevent it?