Yes, guests have the ability to delete entries, photos, and videos (if enabled) after upload. If a guest deletes their guestbook entry, it will delete all of the resources (photos and videos) associated with it. Guests may also delete individual photos and videos in the gallery.
Guests are tracked by device, which means guests can only delete an entry, photo, or video from the same device they used to upload. Guests cannot delete other guests’ content. After the event upload window has closed, guests will no longer be able to delete their entries, photos, and videos.