Social data in digital form—including user-generated content, expressed or implicit relations
between people, and behavioral traces—are at the core of popular applications and …

In 2015, Reddit closed several subreddits-foremost among them r/fatpeoplehate and
r/CoonTown-due to violations of Reddit's anti-harassment policy. However, the effectiveness …

In online communities, antisocial behavior such as trolling disrupts constructive discussion.
While prior work suggests that trolling behavior is confined to a vocal and antisocial minority …

Norms are central to how online communities are governed. Yet, norms are also emergent,
arise from interaction, and can vary significantly between communities---making them …

Do anonymous online conversations between people with different political views
exacerbate or mitigate partisan polarization? We created a mobile chat platform to study the …

We argue that existing security, privacy, and antiabuse protections fail to address the
growing threat of online hate and harassment. In order for our community to understand and …

User contributions in the form of posts, comments, and votes are essential to the success of
online communities. However, allowing user participation also invites undesirable behavior …

As political polarization in the United States continues to rise,–, the question of whether
polarized individuals can fruitfully cooperate becomes pressing. Although diverse …

The subreddit r/The_Donald was repeatedly denounced as a toxic and misbehaving online
community, reasons for which it faced a sequence of moderation interventions by Reddit …

Social media has become a modern arena for human life, with billions of daily users
worldwide. The intense popularity of social media is often attributed to a psychological need …