About Sunfull

The Sunfull Movement counters bullying and the hateful comments that are posted on the Internet

Sunfull Benefits

The posting of positive and thoughtful messages by Sunfull’s participants:

  • Gives hope to those who are being harassed. Sunfull members post positive messages that counter-balance the malicious, negative messages.
  • Shows bullies positive comments in action, which can encourage them to change their posting habits.
  • Provides students the experience of posting positive messages, which reduces the potential for those students to harass others in the future.
Happy, smiling students from Seoul taking part in the Hello Sunfull Campaign on May 28, 2008

If everyone posts positive comments for people we do not know, we will start to overcome the barriers in our minds against others, making a significant contribution to peace in our global community.

Sunfull Vision

Dr. Min Byoung-chul

May 23, 2007


Sunfull is a Korean non-profit organization that counters bullying and the hateful comments that are posted on the Internet. We do this by having people, especially students, post positive and meaningful comments.

Sunfull in Korea is primarily for schoolchildren, especially middle and high school students. This is because Korean students between the ages of 10 and 19 post over 60% of the hateful comments on Korean websites.

We work with schools to promote the posting of positive comments as a part of the school’s anti-bullying program. By providing students with the experience of posting positive comments, the incidence of online bullying can be reduced.

A student’s experience posting positive comments changes their attitude towards comments on the Internet, as well as improving how they interact with other students and their families, expanding the positive impact of the Sunfull Movement.

Sunfull Movement beginning

In 2007, Dr. Min Byoung-chul, a university professor in Seoul, learned that a Korean celebrity had been driven to commit suicide by comments on the Internet. The idea that malicious comments could drive someone to suicide moved Dr. Min to seek a way to counter-balance the negative comments on the Internet.

Portrait of Dr. Min Byoung-chul Dr. Min Byoung-chul

In an effort to counter-balance the negative comments, Dr. Min gave a homework assignment to his students at Chungang University in Seoul. Each of the 570 students in his classes were tasked with posting one positive comment on the websites of ten different celebrities where hateful comments were being posted. This resulted in over 5,700 positive comments being posted on the Internet.

The Chosun newspaper in Seoul learned of Dr. Min’s assignment and published an article highlighting the student’s efforts. The article recognized the proactive response to the negative state of the Internet. The Chosun article was followed by editorials recognizing the potential of positive comments.

In response to the encouragement he received, Dr. Min launched the Sunfull Movement on May 23, 2007, with the support of movie actor Ahn Seong-kee, TV star Yoo Dong-geun, and comedian Kim Je-dong, to promote civility in cyber-space through the posting of positive comments.

Founding ceremony for the Sunfull Movement, May 23, 2007. From left to right, Kim Je-dong, Dominique Noel, Yu Dong-keun, Sun Yao, Dr. Min Byoung-chul, Hsu Yi Ling, and Ahn Seong-kee Ahn Seon-gi

First Sunfull school program

Map of Korea highlighting the island of Jeju

On June 4, 2008, the Jeju Joong-ang Middle School was the first school to become involved in the Sunfull Movement. The school’s Parent Teacher Association (PTA) sponsored a ceremony with 1,500 students, along with their teachers and parents to declare the school’s participation in the Sunfull program. After the ceremony, students posted positive comments for their parents, teachers, and classmates on the school’s website as well as the Sunfull website. The students also started posting positive messages on websites that were beset with malicious comments.

Following the Joon-ang Middle School, 25 other schools around Korea joined the Sunfull Movement. During that period, Dr. Min worked with the Jeju Provincial Office of Education to expand the Sunfull program to other schools within Jeju Province, and for students to be credited with community service hours for time they spent writing and posting positive comments. On October 23, 2008, representatives from all 181 elementary, middle and high schools in Jeju Province gathered together in a ceremony at the Jeju Students Cultural Center to declare their participation in the Sunfull Movement.

Meaning of the Sunfull name

Sunfull’s name comes from posting positive messages.

In Korea, the movement is known as 선플, pronounced “sun-pull”, which is a combination of the Korean word (pronounced “sun”), from the Chinese character for “good”, and the Korean word (pronounced “pull”), which means “reply”.

The Korean pronunciation of “pule” is very similar to the English word “full,” which is why we call our movement in English, Sunfull. In Korean, our name means “positive comment,” and in English, “full of light.”