I have installed your plugin and am now testing it. It seems to work fine when I am logged-in but if I ask anyone else to test, they do not get any of the messages on the public page (like the message that an email is going to be sent for double opt-in, like confirmation of the subscription, etc) So the progress is not visible and therefore confusing. The test-person is subscribed and does get the welcome email. What could I be doing wrong?