As a certified graybeard (just literally graying on my beard now) who now prefers the CLI, I am SO GLAD that tools like this exist. I owe probably all of my high job satisfaction and higher income to the fact that I got to play around with Linux via Ubuntu (and Compiz Fusion via CCSM) and later Webmin and other tools I eventually played around with. I learned so much without realizing I'd be using it later, though IIRC it involved much swearing and gnashing of teeth. It's crazy to think that 20 years later so much of it comes naturally. Though I'm still learning just as much (with just as much swearing at the computer usually) every day.