Instead, you made a claim that Facebook was a poor choice of medium because women aged 18-25 are walking away from the service in droves. You said they were walking away because:
But young women are really walking away these days because they find any picture of them on facebook is quickly harvested for use by some shady dating website. As one student expressed it to me, facebook has a "serious creep factor". So nobody should be surprised that a fashion mag lost money on facebook ads.
A statement like that needs some proof. If you have any, I would love to read it, but until then, I'll argue that Facebook has an immense amount of data and extremely fine-grained targeting options. Therefore, if you plan and monitor an intelligent campaign, it remains a decent advertising medium.
http://www.dailytech.com/Fakebook+Pt+I+From+The+Chive+to+Ask...
On dating websites' use of stolen images:
" He said: "We'd steal someone's identity through say My Space or something, we'd take someone from a totally different country, ie. Spain or wherever it may be. [...] We'd take the person's photos online and we'd start knocking out messages. It was all fake and under the pretence that it was real."
http://www.telegraph.co.uk/news/uknews/law-and-order/1020771...
And yes, I have met people who have had their profile pics used elsewhere. TinEye is a great tool for discovering such incidents. Then again I used to work in the entertainment industry (film) and now teach a forensics class to young people at a local college so I probably run into it more often than the average.