This article explores the influence of right-wing social media users on penal policy formation processes. Through a passive digital ethnography approach, the study examines online debates preceding and following recent legislative interventions adopted in Italy by the new right-wing government in power since late 2022, namely the criminalization of unauthorized rave parties and the punitive approach to migration management. The article discusses the role of social media users as prosumers, who both consume and produce content, and shows how social media platforms amplify political polarization by promoting selective exposure to like-minded viewpoints and facilitating the spread of divisive content. It also showcases how prosumers contribute to the propagation of punitive narratives and engage in direct interactions with populist leaders through social media platforms. Conversely, political leaders—specifically Italy’s Prime Minister Giorgia Meloni in this case study—use these platforms to disseminate their narratives and create support for their penal policies, employing fear-mongering tactics and simplistic messaging. Our findings suggest that, while social media platforms have transformed political discourse, in the Italian scenario their direct influence on penal policy making from the ground-up remains limited. Instead, traditional top-down channels continue to dominate the process of penal policy formation.