Black weakens his own marked stone and creates bad aji in the position with this amateurish, vulgar, Ja-Choong Soo move.
White completely spoils the effect of his shoulder hit by allowing black to Hane at the Head of Two Stones, giving black an easy to attack group.
Once again black's Ja-Choong Soo move allows white to Hane at the Head of Two Stones, giving black a horrible local position.