Vast majority of use cases in the English-speaking world. In other countries like China, Japan, India, ... those edge cases are common enough to represent a si

Vast majority of use cases in the English-speaking world. In other countries like China, Japan, India, ... those edge cases are common enough to represent a significant portion of use cases and make X truly broken. The article is maybe a bit provocative, but you know what, that's exactly what is needed to raise awareness of mainly US-centric developers who would completely ignore the technical issues until they face a clone in China whose only innovative feature is not breaking on Chinese text.