When clicking on the inbox, or the reputation, buttons on Skeptics, a thin white vertical line appears.
OSX machine 1, using Chrome
You can see one white line going through "Citing holocaust denial sites in answer regarded as acceptable by moderators" but if you look closely, you can see three other thin white vertical lines.
I can't see it on Safari.
OSX machine 2, using Safari.
Nor can I see it currently on Chrome.