Initially established as a community dedicated to humor, it became a left-leaning political website due to its unique nature.

Todayhumor launched in September 1999 as a subsection of Infomail.co.kr, a South Korean email service.

[4] During the 2012 South Korean presidential election, an agent of South Korean National Intelligence Service, known by her last name Kim, created multiple user IDs in Todayhumor website and posted articles and comments.

South Korean Police confirmed that she had signed up for 16 user IDs and made 288 clicks to express support or opposition to articles in Todayhumor.

[5] They also confirmed that she posted articles to Todayhumor on politically sensitive topics including Jeju-do Naval Base and Four Major Rivers Project.