^ What that article explains is how to set Photoshop to get great-looking rich-colour images on your own screen that practically no-one else will ever be able to look at unless they happen to have an expensive, high-quality calibrated monitor, know how to use it, and happen to be looking at the picture using software that also handles colour spaces correctly.

Very useful if you know who your target audience is, and they are part of the 0.002% of the world which uses calibrated, high-end gear. (I.e., graphics professionals and some photographers.)

Exactly the wrong advice if you want to be able to edit a picture, send it to your granny, and have it look nice on her screen.

(Come to think of it, Photoshop's default colour space setting is not SRGB as stated in the article, it is Adobe RGB (unless they have changed their policy recently). It's one of the first things you have to change when you install or reinstall Photoshop. Possibly they have changed that since I last upgraded.)