Closed source software on TWN?
Fragment of a discussion from Translating talk:Wikia
Guy Incognito, it's not the first case: we also had Okawix in 2008 or 2009, but after the issue was raised they clarified their licenses (though the format they use is still not the best one, Zeno rather than OpenZIM). So I suggest to give Wikia the benefit of doubt and wait a bit more (those files are 2 years old anyway, as far as I can see).