taekwondo1-5, Exercise 3: Ranks and a controversy

Model answer:

Counting: junior ranks are geup (gup, kup), a number paired with a belt colour, counting down from higher numbers to lower ones. Senior (black belt) ranks are dan ("degree") and count upwards. Ranks are not standardized between styles.

4th-6th dan: ITF = sabum ("instructor"); WT/Kukkiwon = sabum-nim ("master instructor", may grade students beneath their own rank).

Electronic headgear: the article says electronic scoring is thought by some to reduce judging controversy, but the move to electronic headgear "has replaced controversy over judging with controversy over how the technology has changed the sport". Because the headgear cannot tell whether a kick was a correct taekwondo technique, and its sensor threshold is kept low for safety, athletes who improvised ways of placing a foot on the opponent's head scored points regardless of how true to taekwondo the technique was.
Owner of the criticism: the article does not name one. It says "some believe" and gives the criticism without a source, so it is an unattributed claim.

Sources: Wikipedia, Taekwondo.