We speak with Univ.-Prof. Dr. Jana Lasser. She is Professor for Data Analysis at University of Graz and leads the research group of Complex Social & Computational Systems at the interdisciplinary center IDea_Lab. She's also Associate Faculty at the Complexity Science Hub Vienna. We speak about collective moderation of hate, toxicity, and extremity in online discussions. Link: https://www.janalasser.at/ Slides: https://www.janalasser.at/talks/ars_boni_lasser/