It's just that the community is very international.

If players could speak the same language, I guarantee you that TS/Vent/Mumble would be very popular. The best communities I have participated in and ran all revolved around TeamSpeak & Vent, as we could talk with each other when we were just hanging around the computer and not necessarily gaming. That's how you develop closer bonds, it's harder in an international community like this, but it's def. a plus to have in most communities.