Thankfully, the Robinsons purchased the bandwidth capacity and amount to keep us happy (most of the time; no web site can handle a slow Web).
Would it be possible to implement software which compares the source URL of any attempted new threads with the source URL's of existing threads? It seems the source URL's would be the best comparison because, even after repeated requests that everyone use the actual article title in their postings, many people still insist on starting new threads with their own titles. Wouldn't this significantly decrease the number of duplicate posts?