While questions/answers in the discussion space are by design not held to the same rigorous standard of regular Stack Overflow posts, the ability to edit posts should still exist, as people still:
- make mistakes when tagging a post,
- make typos,
- are not always that good at English, making a post hard to read without fixing grammar/wording issues,
- are sometimes not familiar with the markdown options, meaning the formatting has to be fixed.
Given the relative small amount of users active in the discussion space, I believe that a new suggest-edit review queue for discussions would not be feasible, nor adding discussion-suggest-edits to the regular suggest-edit queue. (As far as I understand if you edit your own post, there is no review if you are under 2k reputation points.)
Instead, I propose to only allow editing in discussions to users with the edit-privilege.

