1) The document discusses the linguistic identity of "netspeak" or language used on the internet and whether it should be defined through prescriptivism or descriptivism. 2) Prescriptivism refers to how some people think a language should be used, while descriptivism refers to how a language is actually used. 3) The identity of netspeak is uncertain because it is a new, rapidly evolving vernacular created by internet users, with no clear rules yet around what is considered acceptable.