This is about as cross as I ever get with a student: “Make sure your emails are grammatically correct. For instance, begin sentences with capital letters, and end them with periods. In addition, the first person singular pronoun is spelled ‘I’ rather than ‘i,’ and my name is spelled ‘Bob’ rather than ‘bob.’ Finally, days of the week are capitalized, and contractions like ‘haven’t’ have apostrophes.”
Oh I relate! I call it “unpunctiated stream of consciousness haiku” email. I have to re-write my responses to these numerous times! I got an email yesterday asking “the bare minimum” they “really have to know” for class. Rare at BC but appalling.