High-profile controversies have created an impression that expressive freedom is imperilled on university campuses in North America. Analyses of this alleged campus crisis typically focus either on the negative psychosocial characteristics of those who oppose potentially harmful expression or on the cynical ways that expressive freedom can be invoked to normalize harmful expression. Conversely, I argue that theories of harm are key to understanding the contemporary discourse and politics of expressive freedom on campus. To shift the frame of analysis, I critically analyze three interrelated theoretical concepts that feature elastic conceptualizations of harm and are consequential for expressive limits in an academic environment: epistemic injustice, argumentational injustice and epistemic exploitation. I argue that all three concepts require a distinction between testimony and argumentation in order to better balance protection from harm, on the one hand, and expressive freedom and open inquiry, on the other.