I have been using the Addthis plugin for about 18 months now and found that at least in this country Pintrest was always on the page but never used. Google+ was used regularly but never shown. I worked out how to show a custom button display by dragging them across in the admin area, swapping the two buttons. This worked fine for posts and pages however on archive pages the default buttons are back. Is this a bug or am I doing something wrong?