Uh-oh... sounds like Professor Hammer is about to hand out some poor marks. =)
Strange coincidence... (may, or may not have anything to do with your post) I just posted on another forum a minute ago about the utter disregard for grammar. I guess it's the same as it ever was, just adjusted for inflation. Nowadays instead of sloppy penmanship, it's smartphone and computer lingo, and you still have to decipher what someone meant.
Not that diagramming a sentence ever *directly* helped in my job, but when composing an email, I take a small amount of pride in knowing none of the recipients will have trouble understanding it.