As someone who plays in an international server of World of Warcraft with a significant Chinese population, allow me to agree with you. As an example, I speak

As someone who plays in an international server of World of Warcraft with a significant Chinese population, allow me to agree with you. As an example, I speak languages other than English, but I wouldn't dare speak them in a public channel in the game because I know it's impolite. Chinese players didn't get that memo. But this is part of the same thing as impolite Chinese tourists, etc. It's a cultural thing.