Interactive internet platforms allow speakers to comment on linguistic variation in utterances from around the world to which they are exposed. Digital platforms thus function not only as spaces for discussing linguistic usage but also as arenas for negotiating language norms. Participants in these discussions often adopt strongly asserted normative positions. In this context, a project developed at the University of Kiel is presented in the article. It aims to analyse such normative discourses from a comparative perspective, with the goal of highlighting the specificities of different linguistic cultures. The article draws attention to a gradual shift in the conception of linguistic norms: traditional regulatory institutions increasingly see their authority challenged by a significant portion of language users, who formulate normative claims grounded in social arguments. This shift reflects a normativisation process that is now shaped by more participatory and transnational dynamics.