Answers marked wrong.
It is nice that I can choose to report an answer marked wrong as "My answer should have been accepted", It would be nicer if I then got some feedback on that: "Yes, it should have been accepted." Or "No, your answer was wrong because . . ."
If you are the first to report something AND they agree then you will get notification. Usually several weeks later, but they will respond. I have at least nine of these so far (just counted them up for another thread).
But with so many students I understand why they don't give you a " ... your answer was wrong because ..." reply. This would be overwhelming. Usually you can get answers from another student or moderator if you ask in the discussion section for each question, though some languages seem to do a much better job at this, depending on who answers.
BTW here's a link to the other thread I mentioned. This is mainly a discussion of the differences in the perceived quality of Duo's French vs German classes but there's a lot of talk about the frustration of reporting errors and how that is handled by Duo. https://www.duolingo.com/comment/2229592
Thanks, I have done that and not found it all that useful. The most common thing I've found in the threads is that the reason "su" is accepted as "her" but not "his" in some sentences is the context. Since want we are translating here is a single random sentence there is no context. I don't see context as applicable within the sentence: other sentences constructed the same way will accept "su" as either "her" or "his". Still, I do look. I just get frustrated is all.