How do I submit comments to Duolingo to improve the content of a course? I have been on the Mandarin course for a while. I find that some translations from Chinese to English or from English to Chinese are far too rigid and inconsistent. I reported back a lot of these cases. So far, there has not been any feedback from Duolingo.
I think that you can only report your answers as correct when they mark them wrong. I find that the range of English translations that are accepted is way too restrictive, and it is very frustrating to get gonged out of a test-out because I have been marked wrong on a range of English expressions that I know are correct.
Reporting is all you can do.. I got a feedback email a week ago so there's still at least one contributor looking at them. They're certainly not as active as they used to be - so it might take a while, but most of the course is also a lot better than it used to be.
What I really wish is we would get some response from Duolingo about the fixes that are out of the contributors' control that haven't been touched since beta - the sound errors, the tone mistakes, the missing sounds and hints, etc.
It looks like bilingual people can apply to contribute to any of the courses. For the Chinese course for English speakers: https://incubator.duolingo.com/courses/zh-CN/en/status