Well, I had already changed my download folder to separate new acquisitions from the files already verified and available for download. And I am already manually moving files that have been verified into the shared folder. But as you say, that requires a 'refresh', that frequently terminates the uploads in progress ... something I do not want to do, because I do not like having my own downloads terminated 'in progress'. So (for now) I simply drain the uploaders and when the count goes to 0, I do the refresh.
The 'move' facility within LimeWire would still remain on my 'wish list'.