It is a bit unsettling that this information is out there, but I agree that it is fairly obvious that they have this data. And as long as they are not exposing the individuals, I don't see it as irresponsible to publish something like this.

There was a related story published recently, NYC Taxicab Dataset Exposes Strip Club Johns and Celebrity Trips

http://research.neustar.biz/2014/09/15/riding-with-the-stars...