Le 14 déc. 2012 à 17:51, Stan a écrit : > If most of the users do this right now, it does not mean they are happy with > this,
it doesn't mean they are unhappy about it. Or more exactly that a fraction of them can even look for such a feature. > Second, user accounts are based on e-mails as a rule, which is not unique at > all, every user can have multiple e-mails and multiple registrations. which is a feature, not a bug. Professional account, personal account, cooking-club account, etc. > Many web-services struggle against users' reputation spoofing made via such > fake accounts. That's a different issue. > Multiple browser profiles on the same device do not matter, because the same > device ID will be returned. In some countries, in Asia and Africa, a single device can be used by multiple people. Internet cafes are another use cases. And shiny tablets can be also for one family. Basically device != user != web service > The main point, if device ID could be available it would provide more great > possibilities for users and web-services. And it would create big challenges in usability and privacy. -- Karl Dubost - http://dev.opera.com/ Developer Relations, Opera Software