We’ve enabled Discourse’s “solved” feature in the Help and Troubleshooting category and subcategories (Bugs, Suggestions and Requests, Entities, and Stack Manager).
This allows the original poster and staff to mark a post in a thread as a solution. It will then add a link to the solution into the OP, like so:
It will also show up marked as solved in the topic list:
Give it a spin and let me know what you think!