Subverted: They're forced to stop using nicknames, or else someone is offended by their nickname.
Double Subverted: They keep using the offensive nickname anyway.
Parodied: The nicknames are non-sensical or arbitrary.
"John Smith? That's not a cool name! From now on you'll be 'Mr. Snowball McAwesome Badgerstein, The 3rd'"
Zig Zagged: He hands out nicknames...but they convince him to stop. Then he starts doing it again...and it turns out its a pathological compulsion or down to a Freudian Excuse...wait, he's over it...for now.
Averted: There is no character who uses nicknames all the time.