New Study Highlights Bluesky’s Political Leanings and Rapid User Growth

This new research details Bluesky’s evolving user landscape highlighting political leanings network structure and how it mirrors larger platforms worldwide

• Study from the University of Zurich examines Bluesky’s growth, network structure, and user polarisation
• Left-leaning sources dominate, with over 60% of shared links leading to left-wing websites
• Distinct divisions arose around the Israel-Palestine conflict post-7 October, despite an overall liberal-leaning user base

A new study published in the open-access journal PLOS One has shed light on Bluesky, a growing social media site that launched in February 2023. Carried out by researchers Dorian Quelle and Alexandre Bovet from the University of Zurich, this investigation charts Bluesky’s progress from a small invite-only network to a platform hosting 5.7 million users by May 2024. The study provides extensive insights into the platform’s network structure, patterns of user engagement and the extent to which political leanings factor into its content sharing. The findings underscore the complexities and challenges of emerging online communities.

Platform Dynamics and Political Leanings

Billed as an open alternative to traditional platforms that rely on proprietary content-recommendation algorithms, Bluesky grants users more control over their social media experience. However, the researchers found that “user interactions on Bluesky are similar to those of many other platforms, in that a few highly active users dominate the landscape.” This pattern suggests that while new technologies can alter how content is delivered, the underlying social dynamics often remain the same.

The study also highlights Bluesky’s predominantly left-leaning user base. Over 60% of links shared directed to websites aligned with left-wing viewpoints. About 20% pointed to centrist sites, while 8% of the links were to right-leaning websites. This skew, the researchers note, could be attributed to Bluesky’s invite-only beginnings and the platform’s early adopters, who appear to have been largely dissatisfied users of X (formerly known as Twitter). Indeed, spikes in new registrations often aligned with upheavals at X, including technical glitches and controversial business decisions made by Elon Musk.

The researchers tracked how these events prompted mass migration to Bluesky, underscoring the strong influence of established social media disruptions on the growth of newer, open-ended services. Given Bluesky’s structure, the study suggests that it presents a valuable case for tracking how social networks evolve and how political preferences can be reinforced or challenged as membership scales.

Polarisation and Future Research Potential

Although Bluesky generally leans left, the study revealed divergent opinions surrounding the Israel-Palestine conflict. Prior to the 7 October attacks in Israel, discussions about the region remained relatively neutral. Afterwards, researchers employed a machine learning algorithm to classify posts as pro-Israel or pro-Palestine, finding a sharp increase in polarisation. Over time, a growing portion of users skewed more strongly in favour of Palestine, demonstrating that pronounced ideological divisions can exist, even when a platform’s overall tendencies are broadly shared.

The correlation of user sign-ups with major geopolitical or platform-specific events underscores how swiftly sentiments can shift in online communities. Researchers noted that the surge in politically charged conversations, especially on sensitive topics like Middle Eastern conflicts, reaffirms the importance of examining new social media sites from both a technological and sociological perspective. This focus on context-driven growth patterns could prove invaluable for those studying how digital arenas evolve under external pressures.

These findings open avenues for future inquiry into how similar networks might handle contentious issues as they scale. The researchers stress that Bluesky provides an exceptional opportunity to examine how user behaviour on a social media platform evolves from its infancy. “Our study shows the potential of open social media platforms for investigating the impact of their design and algorithms on collective human behavior,” the authors note. As academics continue to investigate new forms of digital engagement, Bluesky’s transparent and customisable approach could inform the development of platforms designed to mitigate destructive groupthink and amplify more balanced discourse.

For those interested in continuing the conversation, Lab Horizons maintains a presence on Bluesky, offering regular updates on the evolving social media sphere. The platform’s potential has not gone unnoticed by organisations like Technically Social, who manage all of Lab Horizons’s social media channels and support pioneering studies such as this one. By studying the interplay between platform design, user agency and political polarisation, experts hope to glean insights that may steer future developments in social networking.