I'd thank you to note that that "tutorial" was aimed squarely at those who persist in coming into the TS3 section of the forum and disparaging the game by saying that "Oh, I HATE TS3 because I can't make sims look different. They all look the same, therefore Sims 3 is bad." It wasn't aimed at those who already know how to work the sliders.
I'm getting fed up of the dammed vitriol directed at TS3 by those who don't bother taking the time to learn how to use the sliders correctly and then proceed to slam TS3 at every turn. The error for them lies between the mouse hand and the opposite hand interface.
https://ih0.redbubble.net/image.500083143.7767/raf,750x1000,075,t,black_triblend.u1.jpg