“We will turn the viewer’s bulletin board into private because of malicious comments such as an indiscriminate abuse of the cast, excessive slander, and impersonation,” the production team of Running Man said recently. “I would like to ask your audience to understand,” he said.
The reason why the crew of Running Man Closed the viewer's bulletin board is interpreted as a measure to block the evil against Jeon So-min.
This is a shot at a person who pretended to be Jeon So-min on Running Man Naver Live Broadcasting Talk. After that, there was an indiscriminate criticism of Jeon So-min on the SBS Running Man homepage English bulletin board, and the production team eventually decided to pepper the bulletin board.
About Running Man
Running Man is a South Korean variety show, formerly part of SBS' Good Sunday lineup. It was first aired on July 11, 2010.
Running Man was originally classified as an "urban action variety"; a genre of variety shows in an urban environment.
 Wikipedia