This paper examines the volume and type of anonymous comments academics receive in student evaluations of courses and teaching (SETs) at the 16,000 higher education institutions that collect this data at the end of each teaching period. Existing research has increasingly pointed to the negative issues of student surveys, but very little research has focused on the volume, type, and impact of anonymous student comments on academics. This paper analyses the survey results of 674 academics to inform higher education leaders and the sector more widely of the amount and type of abusive comments academics are receiving. The work also demonstrates that the highest volume, most derogatory, and most threatening abuse is directed towards women academics and those academics from marginalised groups. The paper finds that previous estimates of the rate and severity of abusive comments that academics receive, and the impact to academics' wellbeing, mental health, and career progression, have underestimated what is taking place. The paper argues that many universities are failing to protect their staff from this abuse, and the prejudice nature of SET results, which will continue to have a negative impact on the career progression of marginalised academics - a major flaw in a sector that prides itself on diversity and inclusion.