I'm not sure that I agree with everyone else in this topic. It is my impression that when anyone sends content to the "Uncategorized" section that they WANT it to be finished by someone else.
"I've taken this as far as I can. Please take over for me."
If I am the one that categorizes it and completes any needed or optional content because the given content has been released to others, then I assume it is now mine. If people want to retain ownership then they need to go through the whole process. The person that ultimately submits it to the review process is the "poster" and the person that donated the initial content gets credit as well as the "assisted". To send it for review makes you the poster, and that makes sense.
I would think that those that are sending content to the uncategorized area are saying that they are not able to complete the process themselves. And they do get to Visit it once it is posted, and not have to worry about getting emails from other visitors.
BQ