Great suggestion. I bet there are many cases in which this would help! For example, signature campaigns.
Already mentioned the example, but yeah.
This is a great suggestion, but having a function to lock the OP would be great as well. That way people know the information isn't edited, which is useful in, for example, a sale or a verification topic.
That would be a useful feature as well.
Ahhh! Noooooo!
Lol, I edit about 99% of my posts. Virtually all of these edits are typographical, but I also do it intentionally so that I never get called out for an edited post.
Edit: See?
This would only apply on explicitly edit-locked threads, though. Not all of them.
It should also have a warning just like self-moderated threads have that you can't edit your posts here.
The new forum will have versioning for all posts. This means that every change to a post is kept in the database and all users will be able to see all versions of a post. This makes the point of this thread rather moot since it will be on by default for all posts.
But still, if it's a signature campaign application post, you have to for each individual post select the earliest version while with this feature you can just prevent edits and be sure you're reading the original post at first glance.