This was a "God Send!" My Blog The Whirling Wind has only been up since September 2012. I was getting numerous subscribers from all around the world via e-mail. The names looked suspicious to say the least. I finally figured out why. I began to get flooded with trackback pings. I'd go through and mark them as spam the moment I saw them. It was becoming a ritual to be performed several times a day.
Since installing this plug-in, NOTHING! It just works. I was so pleased I sent the author a donation.