The data we publish is only aggregated data. We don't publish any individual-level data on the sites, so right away we don't have to really deal with the anonymization aspects of it. But of course privacy, security, and confidentiality are always of utmost concern to us. As the information management lead in our organization does the approbation of the release of data sets, we make sure that all of these concerns are addressed right from the get-go.
On May 15th, 2014. See this statement in context.