We have a random question regarding the guest list and want to see if this has happened to anyone else. We just finished compiling our full guest list and it is set to private, but there have been several people who have accepted or declined, despite invites having not been sent out yet. This has been over the course of a week, with a few people being updated each day. We just want to make sure it is a reliable system before sending them out with the option to RSVP online or with the physical card, to the card only. The guests do not have a link to the wedding site until the invite so they wouldn't even know where to reply. Is there a chance other people with the same name might have an affect on the system?