Question: in 1 e) above you mention you throw away the original IP info and then in 2 mention work w/ academics around not being able to group whispers from same users. What is the relation between these statements and the ones in the article linked below about "delving into a user's history" in order to verify veracity of claims ? That would seem to suggest you are in fact aggregating user history information (e.g. sets of whispers) for at least a subset of users.. http://www.forbes.com/sites/parmyolson/2014/01/24/3-reasons-....