In Evolution, a user's contact list can be exposed (please correct me if I'm wrong). I am concerned that such breach of privacy will attract negative press and may have significant impact on dash going forward (expensive to counter and rectify). It is said that usernames are pseudo anonymous, but I disagree; the DAPI will (hopefully) be embedded within mobile apps, which in turn collect lots of user data e.g. phone number, wifi identity, location, and so on. Users could register multiple usernames (at a cost), but this is not a user friendly approach.