The article's title is a sly joke, the 'water margin' is the land of outlaws (popular in martial arts novels and films), harking back to Shui Hu Zhuan[1] which is fairly well known in English from Pearl S. Buck's translation, _All Men Are Brothers_
Buck's translation is garbled, from what I've heard, but there's a thoroughly readable scholarly translation that came out relatively recently. I think it's by the same author who did the two-volume _Romance of the Three Kingdoms_ -- it certainly has the same cover style, and is hard to miss on Amazon.
1: https://en.wikipedia.org/wiki/Water_Margin