Re: "Hopefully he also added a bit of text along the lines"
The dangerous commands comment should, obviously, carry a caveat of if you are running commands that you do not know what they do as a privileged user, you should have your privilege revoked immediatly.
I don't know how Unix got dragged in here, but ever since Unix edition 2 or 3 in the 1970s, you've had the concept of ordinary users and privileged users, so there has been no excuse to do day-to-day user tasks with a privileged account.