Again it is a google add script searching for something you computer does not have.
This is the warning that I get because I have my security settings configured to show me what is going on in the background
Just noticing who is having the problems and they are people who have neither a facebook page nor a google account.
At a guess Google adds is looking for something that faceache or Giggle stores on your computer to spy on your browsing history in order to place add in the forum that the AI routine decided that you will respond to.
When you don't have what it is looking for it has a hissy fit because there is no negative search alternative.
While this script is running, nothing else on the computer can run , it hyjacks the entire processor.
The CPU use monitor goes through the roof every time I open a new thread till the adds appear.
If you are using Explorer you should be seeing thtat little yellow warning bar