>They don't line up nicely with the A4 stuff. They don't go gently in the A4 folders / sleeves / pockets / ring binders (files) / etc.

This statement, and the rest of the post, simply reads "I don't like different". However, the article is about the mathematical benefits of A4, the failures of 8.5x11, and the true benefit of A4 from a paper-size agnostic society.

This article convinced A4 is better (and the entire system) not because it doesn't fit in my folders, but because it makes practical sense.