Cool!
I also see use cases for this in photography posts.
I used to visit a lot of photography-related forums in the past.
The nice thing about that was that the experienced photographers (positively) criticized which really helped me as an amateur photographer to make better photographs.
I really like the initiative, but I do wonder how you are going to promote it since you do have to keep it in mind when creating a post.
I've given the post a reblog to give it some more visibility at least.
The people behind @peakd may help it along similar how they did with @reward.app a long time ago. (even though the main idea behind it never got much usage ;()