You might be right. It did really boost traffic in the past but lately, the traffic just fell! We were showing the Incoming search terms on the single article pages of http://www.theextremewebdesigns.com/blog/
All articles were carefully written, and enough time was spent to ensure that the articles comply according to Google's guidelines. But looks like the Incoming search terms started acting against the page. So we are going to disable it & test how it works.
How are things going on your end? Did your website traffic pickup? What have you done to pickup your traffic? If disabling the plugin worked in your favor, how much time did it take to see the rise of traffic?
Please share your thoughts.