International Server?

[Abriael]

My native language isn't English either, so what? Do I walk around in Eorzea, only talking in my language, make it obvious I'm talking bad behind the backs of some people and laugh at them because they can't understand me?

Yay, silly generalization.

This is not about Japanese, it's about people from any country: I think in such an international world we live in today, it's rather rude not even trying to learn a language you can communicate in with others.

Try learning decently a different language that also has a different way of writing and completely different rules, tell me how easy it is. If you thik it's "rude" of them not to talk english, try to learn Japanese, or Chinese, or Arabic, or even just Russian. Then come back and tell me how easy it was.

This without even mentioning that a Japanese that wants to write in english will even have to change input method on his keyboard, which, when you have to do it repeatedly, tends to be a hassle.
Japanese players that talk to you in english, are extending a courtesy to you, you better stop taking it for granted.