Hybrid media systems have reconfigured online journalism and mass communication such that people can engage more easily in multi-directional discourse about the norms of science. We investigate this reconfiguration with a mixed-methods study of the X page of “Retraction Watch,” which produces hybrid “watchdog science journalism” on violations of scientific norms. Results show that Retraction Watch’s X is not necessarily an inclusive forum for open debate about scientific norms. We also find that Retraction Watch prioritizes aspects that may not resonate with its audience. This has implications for how science communicators and journalists approach (hybrid) debate about scientific norms.