It would make no sense to hold mfgrs of ... Microcassette records with voice activation. Wireless microphones. Pinhole cameras. Security cameras.... responsible. That it was done on a computer makes no difference.
Advertisements in general.. I really can't think of a single advertisement that prompted me to purchase a product. Quit the reverse actually. Some adverts were quite repellent and gave me a negative impression; 'Is that really how seller thinks of the buying public?, Nope don't want anything to do with that.'
Political contributions are a matter of public record. Ditto for voter registrations. And here in Florida, if you gave your phone number when registering, it's public too. A complete listing of all registered voters in FL, on a CD, will cost you just $5.00 from Tallahassee. As for how well, or poorly, Gawker redacted in their news article.. The Zip-plus 4 column, which they didn't blackout, will get you CLOSE. http://gawker.com/contrary-to-dnc-claim-hacked-data-contains-a-ton-of-pe-1782132678
And a First Amendment issue as well. That is writing software, publishing code, teaching and discussing circumvention techniques. See DeCSS Jon as an example of what can happen to someone writes software or shares their knowledge.
It used to be sage-advice not to give out your real-name on the Internet. An old Interneter here as well. SLIP, Trumpet Winsock. One of my first experiences with the Internet was on Delphi (GVC) in Oct 25th 1992. See, A Brief History of The Internet at http://www.walthowe.com/navnet/history.html
With reference to Walt's and Delphi's involvement.