Some data is collected for Google Analytics tracking; this is completely anonymosied. The Google AdSense adverts that run on the site run in non-personalised mode so they do not track or utilise any personal information. If logging in to vote, your Bungie.net account idenetifier will be stored as a voting record.
We only stored cookies and local storage elements where absoltely required. Local storage elements are created if you turn on browser notifications to track which vendors you wish to be notified about. A few cookies are created if you login to store your Bungie account ID and your verified status. These are stored so that all information is client-side, that way you are in complete control of all the information the site may have or use. Logging out automatically deletes all these cookies.
If you donate some information will be stored for accounting and recording keeping purposes. This information is stored by PayPal. Please refer to their privacy polices regarding it.
The API and it's usage requires no personal or identifiable information. You have the option of passing a tag to help with debugging issues, but this can be completly randomised; it just helps to identify a specific request in there is a problem.