Idea: Reporting sentences from discussions
Discussions are often started to check if a sentence is incorrect. After the mistake is confirmed by native speakers, the original poster has to wait for this sentence to come up again in order to report the mistake. Why not make reporting possible from the discussion itself?
I think it would be good too if the Duo staff could go through the Portuguese discussions because I keep stumbling over problems people have talked about but (I assume) not reported.