User-agent is being logged in apache
This violates the privacy policy, which states:
Browser fingerprint: Your web browser communicates uniquely identifying information to all web servers it visits by allowing the site to know details about your operating system, browser information, plugins installed, fonts installed, screen resolution, and much more. We do not retain any of this information.
(from redmine: created on 2014-09-22, closed on 2014-11-04)