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🚨New WP: Community notes reduce the spread of misleading posts on X🚨 👉Based on *time series* data for N=31,758 cascades, we found that exposing users to CN reduced subsequent reposts by 61.4% 👉The effect on overall engagement was smaller & depended on how quickly CN appear 🧵

"...false news has a longer lifetime and receives more posts on X than true news." "...post viewers tend to engage more with misinformation containing conspiracy narratives." "...false news posts that contain conspiracy theories, on average, receive 40.8% more reposts, 45.2%

Does community-based fact-checking reduce the spread of misleading posts on social media? New results (with Community Notes data up to June 2024) and a new 🧵... arxiv.org/pdf/2409.08781

Disinformation is a security problem “Requires a continuously updated, multilayered, adaptive learning, team approach.” gartner.com/en/articles/to…

🚨 Is Fact-Checking Politically Neutral? Our paper exploring “Asymmetries in U.S. Fact-Checking Organizations Pick Up False Statements Mentioning Political Elites” was accepted by #ICWSM25 ! Our preprint version is available at: 🔗 arxiv.org/pdf/2310.08821

🚀Notes on links🚀: one big step closer to notes everywhere! This is one of our most requested features and one I've been very excited about for a long time, thanks Daniel Ortiz for making it happen!

New CSCW paper, new content moderation paradigm. Post Guidance lets moderators prevent rule-breaking by triggering interventions as users write posts! We implemented PG on Reddit and tested it in a massive field experiment (n=97k). It became a feature! arxiv.org/abs/2411.16814

Compared to fact checks that are rated as "true," "false" fact checks are more likely to mention Democrats but less likely to mention Republicans, finds Yuwei Chuai, Nicolas Pröllochs et al. doi.org/10.48550/arXiv…

🚨Wondering how users emotionally react to misleading posts when being informed by community notes? Please check our paper that was cond. accepted at #CHI25. Preprint is available at arxiv.org/abs/2409.08829. w/ Anastasia'Asya'Sergeeva, Gabriele, and Nicolas Pröllochs

🍞🔥🧑‍🍳 Fresh of out the oven! In a new blog post, I argue we must be more critical in evaluating research on “algorithmic amplification.” Otherwise, we risk rediscovering that algorithms do not exist in a vacuum. We're better off doing other things! (link below)

🚨New #CHI paper🚨 🤔Thinking of posting misleading content? Think again! 👉If your post gets debunked, you might face a wave of moral outrage 😡🔥 Our new study provides *causal* evidence that community notes on X don't just inform—they trigger emotional backlash in replies 🧵

Had a very competitive and intensive submission experience at #CHI25. I’m lucky that my first submission to CHI was accepted. Thank all our reviewers for their high-quality reviews! 🇱🇺 Also, a 50% acceptance rate (2/4) in Luxembourg is not bad : ) chi2025.acm.org/chi-2025-paper…

Community-based fact-checking is gaining popularity. In addition to X, YouTube, Meta, and TikTok US are testing this approach. I’m heading to Yokohama to preset our fresh #CHI2025 paper on #CommunityNotes Looking forward to seeing you there and hearing your insights!