In short (you don't need the link to that entie page posted above):
Here's the solution I found in case anyone else needs it in their BitComet.
Disable the setting seen highlighted in this screenshot. It stops .padding files from being created. Just described this to someone for their torrent which had a crapload of padding files, and this solution stopped them when he reposted his torrent.
bitcometpaddingfiles.jpg https://www.cometforums.com/uploads/monthly_07_2011/post-1287-13100399619722.jpg
