This is in response to this article.
In the 21st century where 2k monitors exist, saving a line of code here or there really isnt a valid argument. Especially when source files can most of the time fit all on one screen. Code folding also exists in many good IDEs.
2k monitors do exist, but not everybody has them. I have a single 20" monitor with a resolution of 1600*900.
Saving a line of code here and there does count for something when you're looking at a ~9000 line monstrosity like this.