Comment by yichi

I'm against Pinyin for the same reason as why I'm against using Romaji for learning Japanese. Pinyin and Romaji uses latin alphabet for representing sounds in a foreign language and if you are a native English speaker like most of us on HN, it's really bad because your brain will try to associate your knowledge of English with Pinyin you are reading. If you use Zhuyin for Chinese, or the Kana system for Japanese, you are telling your brain to start learning the phonetic system from scratch, which makes learning Chinese or Japanese a lot easier phonetically at least.