His username seems to be his real name in Korean. I guess he didn't understand English that well enough and accidentally revealed his name to the world on a (basically) porn website. Hence, he wants his account deleted. It's pretty funny because if he didn't post anything in the first place, no one would have known about his account (and hence the fact that a guy named 정안빈 likes porn). I wonder if 정안빈 is a famous person lol...