Winni Wiki only collects information about it's users in the form of logs related to page access, and request origin. Logs are rotated as per the default policy of the underlying webserver. They are never copied for use beyond diagnosing problems with the site. The only person who might ever see the details of a request from your computer is the site admin.
Winni Wiki does not distribute any information, automated or otherwise, to other companies. We do not sell user data to other companies or organizations.