When the post author thinks the problem is solved, he/she can marked it as [Solved], just like marking like, bookmark, or share.
Most importantly, this [Solved] mark should be showed at the search result page as well as home page:
Those visualization could help to enhance the efficiency:
- On the one hand, it helps mentors to choose which post to answer more efficiently.
- On the other hand, it helps readers to choose which post to check with a better likelihood. Besides, showing the numbers like likes, replies, views may help to improve this likelihood.