John likes to remain unnoticed and does so naturally through the self-effacement found in his personality.
Someone's self-effacement is their unwillingness to talk about themselves or draw attention to themselves. He was modest to the point of self-effacement
[ 'self, Southern also 's ] (pronoun.) before 12th century. Middle English , from Old English; akin to Old High German selb, intensive pronoun, and probably to Latin suus one's own; more at SUICIDE.