I know this is an old thread, but this is an important issue for me! I used to have the Japanese FFXI client back in the day for this very reason because romaji is very frustrating to read and communicate with. It was a really amazing experience being able to speak with players in Japan.
I'm glad to hear that Japanese input has been introduced to FFXIV. Why can't FFXI do the same now? It would be really great to finally have a way to talk with Japanese players and not simply rely on the auto-translate feature or romaji.
日本語を勉強している外国人多いです。ゲームの中に、ちゃんとした日本語を入力させてください。
There are lots of people from other countries learning and studying Japanese. Please allow us to input proper Japanese in game, too. ^^