What word should he have used? Negative connotations or not, "neuroticism" is the accepted term for the Big Five trait he was referring to. Should he have made

What word should he have used? Negative connotations or not, "neuroticism" is the accepted term for the Big Five trait he was referring to. Should he have made up his own name for it? If he had, internet armchair scientists would be ridiculing him for being so uninformed about the topic that he didn't know the proper terminology.