Will moving to the new experience affect any of my current Yahoo! Settings/marketing preferences?
A. Most of your Yahoo! settings will remain the same. However, in order to make sure you get the absolute most out of your service, we occasionally like to send email service updates, news about special deals for members and more. At registration, you are automatically added to the Yahoo! mailing list to receive this information. If you do not wish to receive marketing emails, you may remove your name (http://subscribe.yahoo.com/showaccount) from this mailing list after you complete account activation.