All the content on http://wikirate.org is publicly available information. This includes your profile page data that you share.
We store the email addresses of users who sign up, this is used to log in to the account. We also send notification emails to users who follow content on WikiRate, and a newsletter to users who opted to receive this.
Please note that we track user IP addresses, and share user data with third parties such as Google (for Google Analytics purposes).
We also track anonomised data to be analysed for usability improvements for all our users.