Although I disagree with the professor on this, I do understand his point. A lot of what people learn in college is simply how to fit in among social elites an

Although I disagree with the professor on this, I do understand his point. A lot of what people learn in college is simply how to fit in among social elites and follow their norms. Lots of people place a high amount of importance on "proper" spelling and grammar. And rather than recognizing them as largely arbitrary social conventions, they'll deride those who do not use them as stupid or uneducated. There are simply millions of spelling/grammar nazis on Facebook. Copy editors are probably the most conservative to style change that there is. Because their mastery of arcane style rules is their "moat" or competitive advantage.