Perhaps people don't appreciate how much of a logistical nightmare this would be - tutorials would be made in German/French/Spanish/Italian/Russian and no one from any other language would be able to benefit from these people's advice without first having it translated. Unfortunately, the way most countries education systems are setup to teach English to everyone as a second language makes English the closest thing we have to a universal language - I have no doubt that this will eventually change.

Personally I don't think the community is large enough to warrant different language sub-forums. I feel like the itT community is dominated by less than 100 people at the moment and if you start splitting advice between languages you're going to have a knowledge management meltdown - something itT is already dangerously close to with such poor search functionality