I installed this plugin a few weeks ago using bit.ly as my shortener and have noticed a huge spike in calls to the bit.Ly shortening API. For the most part, I didn't have a problem with this as the calls have died down but I am now getting HTTPS calls to bit.ly and my site doesn't use this protocol for any of the articles or content. I get in the order of 50 calls a day to bit.ly to shorten non-existent HTTPS pages.
There must be something in the code of the plugin causing this. I would love to see it fixed.