tachin1 wrote:
Maybe it doesn't really matter if they do or don't, I kind of get the feeling that it only matters that they get other people to think they can target a demo, if at least, better than others.
In this sense, twitter can say, in business speak, that they know who they're users are and therefore, how they should potentially shop.
After all, its not like most businesses really do rely on scientific data to operate, or that ad networks have an impeccable record in targeting "demo's", they all sort of realize that its the best they can do at the moment while at the same time publicly presenting themselves as 100% confident about their business models and results.