While it did away with the horrible 2-column layout, it looks like the article was writen with those columns in mind, so it uses short paragraphs that look good on 2-column, but feel a bit weird on a wall of text.
My (barely existant) OCD is going haywire over this article as I read it...
OT: Anyone know why all browser vendors implemented this CSS columns aberration so hurridly..? I have never seen a good use for them, so painful to read. It's always some designer trying to show off their "epic" CSS skillz.
Also, the picture with the directory tree got cropped out for me, and I couldn't figure out how to scroll it horizontally. Good thing the columns can be toggled.