Chung-Ang University study finds comment history disclosure reduces harmful online behavior
A research team from South Korea’s Chung-Ang University, led by Associate Professor Jinyoung Min, has found that linking online comment histories to a persistent pseudo-identity can reduce harmful behavior in digital spaces.
The study examines how comment-history disclosure systems encourage self-regulation while maintaining user anonymity.
Addressing online behavior
Comment sections often serve as platforms for public discourse but can also foster harmful behavior such as hate speech and personal attacks. Traditional moderation techniques, including real-name policies, algorithmic content filtering, and human oversight, face challenges related to privacy, cost, and potential bias.
To address these issues, the researchers tested a system that makes users’ past comments visible under a single digital identity. This approach maintains anonymity while promoting accountability by creating a visible record of users’ interactions.
Study methodology and findings
The study, published in Communications of the ACM, analyzed over 1.7 million comments across two platforms: Naver, which implemented the comment-history disclosure system, and YouTube, which did not.
Using a difference-in-differences analysis, the researchers identified notable changes in user behavior on Naver after the system’s introduction.
Key findings included:
A 24% improvement in the average sentiment of comments.
A significant reduction in hate speech targeting specific groups based on factors such as race and gender.
Dr. Min said:
“This finding highlights the potential of designing online systems that promote responsible behavior while respecting privacy. By linking actions to a persistent digital identity, we can encourage more constructive engagement without compromising user anonymity.”
