There is a decreasing number of things that drive me crazy while playing Tremulous, one of the things that possibly always will is, when people insistingly if not to say ruthlessly – do not use English.
So, why do I even care? After all, I don't have to actually
read what there is in the gamechat, I mean, if people yell
DECONNER! or something, or newbies are asking questions, so what?, I mean, in the end, there is no real reason for a gamechat, is there…?

Dammit, people should use the English language. Like Latin in the middle ages, English is the Lingua Franca of the net, there is nothing to it, and if you want to show some kind of national pride,
go work, you suckers and contribute to your country's well being instead.
Tremulous players come from all over the world, even the handful of people to have signed the manifest (see signature) so far speak (in alphabetical order), English, Finnish, German, Hungarian, Polish and the Ukrainian language, I also encounter on a regular basis people who speak the Czech language, French, Italian, Russian, Spanish,… which would be about a dozen different mother tongues you may encounter during the course of just a few games!
The English language may not be the best there is (one reason being that there is no such thing as a "best" language), but it is an established standard, and so people really should use it. I myself, an Austrian, scold people who use German, or, answer in English to German questions, and only if I realize that the level of English of somebody is so low that they wouldn't understand me, I answer in their mother tongue.
If you chose not to play with people other than "your own", go open your own regional server, and lock out everybody else, in any other case, using "non-English" demonstrates a certain level of ignorance/stupidity, because on one hand something you don't consider worth to be understood by everybody should not be told to everybody, and on the other hand, if you don't give a fuck about other people, you are surely not fit for playing with other people and should not do so.
I guess everybody considers spamming something that is annoying at best, and posting uninterpretable messages is nothing else. I wish people would realize that.