Pay attention to the official website have been added languages. Chinese including. The case moves once the choice has appeared means there is demand.
After reading this information, I conclude that the team wants to draw attention to its user project from almost all countries of the world. Therefore, it adds the most common languages to your site.
Of course. like any other project wants to attract attention. It's one thing to want, it's quite another to do in WinStars that the developers are working.