If there is any hope of editing thread titles to indicate a "SOLD" status, I believe that duty would fall upon Donnie.
I know he's a busy fellow, just trying to keep up, but maybe a PM to let him know that something has sold, maybe he could find time at some point to include that info in the thread title to help out other classified shoppers in the future.
Sorry, Donnie, but even the best job in the world has dirty diapers to change.