I have an idea for a "request complete button"

So if i was to request something like in the Graphic Request section, If i was the requester i would see a button that would allow me to state this has been completed
From there a Moderator could filter out requests that have been completed, and close them, so requests that need completion can easily be seen.

The button preview could look like this(top right) :



And for regular users until the complete topic is closed it could appear like this :



And I think this could be helpful for trade sections also to clear out some of the completed searches, so people don't post on old threads and just create a cluster of old topics.