Please report your concern directly to the course team or contact us to report your concern, and we will notify the appropriate course team. Course teams are on the front lines of managing all instructor and learner course conduct in accordance with the edX Rules for Online Conduct and Strictly Prohibited Items. In addition, some course teams have participation policies, escalation protocols, and other institution resources for managing course behavior. All learners are expected to abide by these terms and can be removed from a course or have their edX account terminated if they violate these terms.
Also: when potentially inappropriate comments are spotted, we have seen that reacting carefully may help avoid escalating the issue. If possible, try not to take insults or inappropriate remarks personally. An emotional response will more likely encourage a learner whose objective is to be disruptive. Sometimes comments are unintentionally disrespectful, or a commenter expresses an opinion too strongly. Instructions for reporting an inappropriate discussion post are available here.