alt Hacker NewsIf a modern linguist call any usage as wrong, I would ask for his diploma and check if I have to close his university, because clearly they shouldn't teach linguistics 101, let alone bring someone towards a PhD. Linguistics is descriptive, not prescriptive.
Then linguistics is worthless. Descriptivism can't actually tell you anything; all someone can say is "yep, you sure are using that word that way". Fortunately prescriptivists still exist despite people's best efforts to give it a bad name.