There's a measure of prescriptivism and descriptivism in every dictionary. Prescriptivism believes that the language should mirror the best practices of English, and editors are prescriptivist in so far as they don't want to let things they consider to be inelegant or ungrammatical into print.
Kory StamperIt's very easy, when things like the gay marriage write-in happen, to get sick of how people view language and say, "ah, come on it's just a dictionary." But then you hear from people who say if you take out "retarded" it won't exist anymore, and there will be no slurs for people to call my child. And that's just heartrending.
Kory StamperWith "marriage," the word gets applied to same-sex marriages by proponents and opponents alike. That means the word itself is changing, and we reflect this change. But because of the idea that the dictionary is the objective voice of authority over culture and knowledge, it reads like approval. It's not a helpful way of looking at lexicography.
Kory StamperBack in the 19th century, our marketing folks decided to play up the refined usage angle because prescriptivism was very popular: our dictionary is where you go to learn anything about anything. That really set the tone in North America for how people responded to dictionaries.
Kory StamperWe want to emulate the educated class, even if we don't think of educated people as a class these days.
Kory StamperYou will hear people say the C-word. Except, it's a regional language: in British English, c - t has much less of an inflammatory sense than it does in North American English. You can hear someone on British TV called "a c - ting monkey" or a man being called a c - t. The particular fascination of profanity is how culturally specific it is and how it evolves.
Kory Stamper