Currently, the JSE requires its question titles be at least 15 characters long. However, this 15-character requirement was set for English, in which a word is easily 4-10 letters long, and any question in under 15 characters can be safely assumed to be too brief. In Japanese, however, with Kanji, the information density is much higher, and a complete question can be well under 15 characters.
My personal experience: I recently asked a question about the word 雛たち in Japanese. I wanted to make the title:
雛たちとは？ [6 chars] OR 雛たちとは何でしょうか？ [12 chars]
Had I asked in English, the lengths would be:
What does 雛たち mean? [19 chars]
I had to change the question to 雛たちとは何の意味でしょうか？ to pass the 15-char limit.
In short, I feel the 15-char limit is designed to work with English, which has a lower information density than Japanese. Having to expand my question to fit the 15-char requirement felt extra and unnecessary. Should we lower the 15-char limit, or just have it removed?