Washington Post (https://www.facebook.com/dialog/permissions.request?app_id=225771117449558&display=page&next=https%3A%2F%2Fapps.facebook.com%2Fwpsocialreader%2F%3F&type=user_agent&canvas=1&perms=user_about_me%2Cuser_likes%2Cpublish_actions") is able to request the publish_actions permission.
It says this on Facebook:
While in Open Graph Beta, the 'publish_actions' permission can only be requested from developers and test users of your app. The 'publish_actions' permission will be ignored if requested from any other user.
When I try requesting the permission from non-developers, this shows up:
Logging in will not add this app's activity to Facebook.