A suggestion for filled requests

Something I noticed on ratioed torrent sites and that maybe would be nice to have:
When someone ups a torrent, there's a "thank you" button with the option of leaving a comment. Maybe we could have something like this, so that when we receive a notification for a filled Maybe the automated "filled request" notice we get when one of our requests is granted could have a thank you field where we have to write our thanks, then we validate it, and then we get the download link?