[4][5] Responses to the site include the American Association of University Professors and The New York Times raising fears that it threatens academic freedoms by harassing and intimidating staff, conservative magazine National Review describing it as an "irritable gesture" of victimhood by conservatives, and concerns about the safety and welfare of staff following a trend of threatening behavior and communication, including rape and death threats, being sent to listed faculty.

Julio Cesar Pino, a professor of Latin American history, was added to the list on the basis of rumors that the FBI may have investigated him for having connections to ISIS.

Lamb, a director of constitutional enforcement and transparency at Turning Point, has described the site as "simply aggregating" professors who have been the subject of news reports.

"[14] One professor included in the site, George Yancy, wrote that it is "essentially a new species of McCarthyism, especially in terms of its overtones of 'disloyalty' to the American republic".

Dreier's entry formerly listed him as a former employee of the Industrial Areas Foundation and as the man who inspired college student Barack Obama to become a community organizer.

He also noted elements of his biography that the website completely omitted, such as his work with labor unions, his activism in favor of a minimum wage, and the books he wrote.

"[18] The website's organizers say that it simply provides conservative students with a guide to their professors, akin to RateMyProfessors.com,[19] enabling them to avoid left-wing classes.