I have a number of datasets for torrents that have no seeders and often no downloaders either, but I can see no way of telling if anyone wants them other than by starting them one by one. There may be no interest or the potential downloaders may have given up. Could we have a section for members to request reseeds?
The best way to revive a torrent is to reseed it and post a comment to the torrent saying it's a reseed. This will bump the torrent to the top of the "Recent content" page.
I created a forum for requests. If an already existing torrent needs a reseed, the best way to do it is to make a comment to the torrent itself. You can also flag the torrent with a "request reseed" so the torrent's uploader can see it more easily.