There seem to be 2 issues when a user unsubscribes (I'm not talking about registered users, just public subscribers).
1) Their email address is not being removed from the public subscribers list. This is critical, I'm afraid people may start flaging me as spam if they can't unsubscribe.
2) After they click the "Unsubscribe" button, they are not being forwarded to the specified "Default Subscribe2 page", but instead to the 1st page in the drop-down selection of pages in settings > Appearance tab. This is only when they "Unsubscribe". When they "subscribe", it takes them to the selected page in settings as specified. Just not when they "Unsubscribe".