Justin Knapp

Justin Anthony Knapp (born November 18, 1982) also known by his screen name Koavf, is an American Wikipedia user from Indianapolis, Indiana, who was the first person to contribute more than one million edits to Wikipedia. As of July 2015, Knapp had made almost 1.5 million edits to Wikipedia. He was ranked No. 1 among the of all time, from April 18, 2012 to November 1, 2015.