Amir,
I agree with everything you said, especially that languages are knowledge in themselves, but I must say that Wikimedia is not doing much in an effort to teach languages to people. Why isn't there more effort at the WMF or as a movement to try to develop a platform to teach languages?
Jean-Philippe Béland Vice President and Programs Coordinator, Wikimedia Canada Coordinator, Wikimedians of North American Indigenous Languages User Group