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Over the past few years, a number of new “fringe” communities, like 4chan or certain subreddits, have gained traction on the Web at a rapid pace. However, more often than not, little is known about how they evolve or what kind of activities they attract, despite recent research has shown that they influence how false information reaches mainstream communities. This motivates the need to monitor these communities and analyze their impact on the Web’s information ecosystem. In August 2016, a new social network called Gab was created as an alternative to Twitter. It positions itself as putting “people and free speech first'”, welcoming users banned or suspended from other social networks. In this paper, we provide, to the best of our knowledge, the first characterization of Gab. We collect and analyze 22M posts produced by 336K users between August 2016 and January 2018, finding that Gab is predominantly used for the dissemination and discussion of news and world events, and that it attracts alt-right users, conspiracy theorists, and other trolls. We also measure the prevalence of hate speech on the platform, finding it to be much higher than Twitter, but lower than 4chan’s Politically Incorrect board.

Der Beitrag bietet eine kurze Einführung in die Geschichte dschihadistischer Propaganda von den 1980er Jahren bis in die Gegenwart. Nicht nur die medientechnologische und -kulturelle Entwicklung, sondern auch geopolitische Konfliktgeschichte mit wichtigen Stationen wie der sowjetischen Intervention in Afghanistan und dem ersten Tschetschenienkrieg sind hier ausschlaggebend. Was die Entwicklung auf dem Feld der Online-Propaganda betrifft, stützt sich der Verfasser auch auf eigenen Erfahrungen im Rahmen der Beobachtung und Analyse dschihadistischer Internet-Auftritte und -Kommunikatverbreitung.

Is it possible to guarantee users online safety while also guaranteeing the right to freedom of expression? If there are limits to be placed on speech, who decides? In her keynote lecture of the VOX-Pol summer school on topics in violent online political extremism hosted by the Center for Media, Data and Society at the CEU School of Public Policy, Jillian C. York examines these questions, and looks at the current state of freedom of expression on the Internet, as well as the grave threats it faces. Jillian C. York is a writer and activist focused on the intersection of technology and policy. Based in Berlin, she serves as the Director for International Freedom of Expression at the Electronic Frontier Foundation, where she works on issues of free expression, privacy, and digital security. Jillian is also a fellow at the Center for Internet & Human Rights at the European University Viadrina, and a member of the Deep Lab collective.

The Islamic State (ISIS) was uniquely effective among extremist groups in the Middle East at recruiting Westerners. A major way ISIS accomplished this was by adopting Hollywood-style narrative structures for their propaganda videos. In particular, ISIS utilized a heroic martyr narrative, which focuses on an individual’s personal glory and empowerment, in addition to traditional social martyr narratives, which emphasize duty to kindred and religion. The current work presented adult participants (n = 238) video clips from ISIS propaganda which utilized either heroic or social martyr narratives and collected behavioral measures of appeal, narrative transportation, and psychological dispositions (egoism and empathy) associated with attraction to terrorism. Narrative transportation and the interaction between egoism and empathy predicted video recruitment appeal. A subset of adults (n = 80) underwent electroencephalographic (EEG) measurements while watching a subset of the video-clips. Complementary univariate and multivariate techniques characterized spectral power density differences when perceiving the different types of narratives. Heroic videos show increased beta power over frontal sites, and globally increased alpha. In contrast, social narratives showed greater frontal theta, an index of negative feedback and emotion regulation. The results provide strong evidence that ISIS heroic narratives are specifically processed, and appeal to psychological predispositions distinctly from other recruitment narratives.

Debates around the effectiveness of high-profile Twitter account suspensions and similar bans on abusive users across social media platforms abound. Yet we know little about the effectiveness of warning a user about the possibility of suspending their account as opposed to outright suspensions in reducing hate speech. With a pre-registered experiment, we provide causal evidence that a warning message can reduce the use of hateful language on Twitter, at least in the short term. We design our messages based on the literature on deterrence, and test versions that emphasize the legitimacy of the sender, the credibility of the message, and the costliness of being suspended. We find that the act of warning a user of the potential consequences of their behavior can significantly reduce their hateful language for one week. We also find that warning messages that aim to appear legitimate in the eyes of the target user seem to be the most effective. In light of these findings, we consider the policy implications of platforms adopting a more aggressive approach to warning users that their accounts may be suspended as a tool for reducing hateful speech online.

VOX-Pol Blog post.