Twitter has refused to comply with a French court's demand to reveal the identities of individuals who sent out a series of anti-Semitic tweets. This is in addition to unsucessful efforts to fight efforts to reveal the identities of ither users of the site:
Twitter has revealed user data in several cases after being forced to do so by U.S. courts, including personal data related to several users who were supporters of WikiLeaks, such as Icelandic MP Birgitta Jonsdottir and hacker Jacob Appelbaum. Twitter also handed over tweets by two members of the Occupy Wall Street movement, after being forced to do so by a court order, although it fought against both of these decisions — and also made the request for the Occupy supporter’s data public even though it was asked not to do so.
What makes these kinds of cases so difficult is that Twitter is a private corporation with a proprietary platform, and yet it is being used as a public communications vehicle around the world, and one whose free-speech aspects are becoming increasingly important. And while we may all agree that certain types of speech are offensive, the idea that governments or courts can force Twitter to reveal the identities of those users is troubling in the extreme.
While Facebook and to some extent Google are also being used in this kind of context, Twitter is unique in the sense that it explicitly allows people to use pseudonyms. Facebook has a firm policy on the use of “real” or verified names, and while Google somewhat grudgingly allowed users to add pseudonyms to their Google+ accounts after what some called the “nym wars,” the service is still designed primarily for “real” names. Twitter is one of the only communications platforms of its size and reach that freely allows users to be known by pseudonyms.