I haven't noticed any thread suggesting this feature, so I decided to create a topic about it. The concept is pretty simple: just like you choose if you want your thread to be self-moderated, you could choose if you allow users to make edits to their posts. This would be useful in threads that require you to post to apply to something such as a signature advertising campaign, a contest that requires you to guess something, etc.

Even though you can look at the post to see if it's edited, it's usually quite overwhelming to check every post when processing pages of information manually.