Who is Facebook's mysterious “Lan Tim 2”?
As anyone who is, or has, worked in ad-tech would tell you, this is pretty _tame_ in terms of the "offline conversion problem."<p>When there are $billions$ of dollars at stake for this type of information, you can guarantee there will be many companies attacking this problem.<p>Therefore, not to be a pessimist, but if you think that 1) using a fake cell number on Facebook is going to help or that 2) there aren't services like Google doing this already, potentially with just as good match rates as Facebook, or 3) that using Firefox + adblock is all you need, then you're going to be constantly plugging holes in a leaking boat.