To comment on the blog or take the survey, you must be a registered WordPress.com user. You can be a registered user without having a blog. The settings are not requiring your real name and/or email address to be displayed. Your username will be displayed. You can choose any name you want, it does not need to identify you. That said, please be respectful and professional when airing your differences. You do not have to be registered to “follow” the blog only.