Create question-oriented topics and instruct learners to tag course-related questions tagged with those topics. Creating these sorts of topics and reminding learners to use them will allow learners to answer each others’ questions for you, saving you from answering the same question 10 times for each individual learner. If you think a specific answer is the "right" one and you want to indicate that to your class, you can simply mark it with a "Verified Response" accolade. Students can also filter their feeds by the "Verified Response" accolade, which can serve as a useful study aid.
Why? If you consistently give Accolades to those who post good answers to others' questions, the instructor recognition and points from those accolades will encourage them to respond to each other quickly and accurately. And once learners realize they can get accurate answers faster through Yellowdig, they’ll stop flooding your email inbox.