Improve the screening function to make it easier for everyone to find the language they are good at and improve efficiency. For example, I am good at Chinese. If I can list all Chinese directly, my answer will be very efficient, and I can see all Chinese, so basically I won’t miss any questions. The...

Or, it's also great to restrict users to only post one question, answer one question, and activate one question opportunity.

All the people answer the questions instead of just those few people back and forth

For the respondent/adopter, after confirmation, rewards, points or something are given, and the rewards can be redeemed for "Top of the list!" or other, which can inspire everyone's enthusiasm for answering!