When I hover over the author link Then the talk to author link is visible
To my knowledge this has always failed in IE, e.g.
watching the screencast, "hover over the author link" doesn't reveal the ( Talk | Block ) links though it works fine if I drive IE myself.
It sounds like the hover issue is a known problem for IE, "[webdriver] Mouse Hover not working in IE when mouse pointer inside the window", possible workarounds in http://stackoverflow.com/questions/19662045/selenium-hover-elements-with-ie
In the interim, we should disable that one part of the feature test on IE.