In #Göttingen the Max Planck Institute (MPI) for Dynamics and Self-Organization leaves #Twitter. The SUB library and the MPI for the Study of Religious and Ethnic Diversity did so shortly before Christmas. The university, the MPI for Solar System Research and the MPI for Multidisciplinary Sciences go on tweeting as usual. Their joint IT service GWDG had its last post on Nov. 2023. #eXit #WissXit