This is a serious violation of the user's privacy. The related articles should only show up if the user clicks on a "What's Related" button, otherwise the URL should not be sent to Alexa.
I'm marking as a dupe of 53239, under the assumption that they will address the issue of making Alexa queries while the sidebar is closed... Someone made that comment already on that bug. It is a P1 and nsbeta3+, so it will hopefully get addressed quicker than if this bug was left seperate. *** This bug has been marked as a duplicate of 53239 ***