The "slurs" were almost certainly hoaxes put there by Leftists -- as they usually are these days:
"Following outrage from the University community in response to racist graffiti found outside Pierson College on Tuesday, College deans have said they have begun laying out specific plans to prevent similar incidents in the future - including the possible creation of a new multicultural office.
Dining hall staff discovered graffiti early Tuesday reading "N*gger School" spray-painted on a wall outside the York Street gate to Pierson College. The incident came on the heels of several reports of racist and homophobic incidents on campus, including students wearing blackface costumes on Halloween and homophobic slurs painted on other college property.
In e-mails to Yale undergraduates Thursday morning and early Friday morning, Yale College Dean Peter Salovey and Afro-American Cultural Center Director Pamela George, respectively, outlined the steps they plan to take in response to the incidents, including the development of an administrative office to address multicultural issues.
Source
Just an excuse for more futile but self-congratulatory bureaucracy. Jobs for poseurs! There's an immense amount of hot air about it at the link above.
