Unauthorized Experiment by Researchers on Reddit
In recent days, the Reddit community, specifically the r/ChangeMyView (CMV) subreddit, has been shaken by a case involving an unauthorized experiment conducted by researchers from the University of Zurich. The aim of this experiment was to test the persuasiveness of comments generated by artificial intelligence, and it sparked a wave of criticism not only among users but also among experts in ethics and online communication.
How the Experiment Was Conducted
The researchers created several fake accounts that presented themselves as different people—for example, as a survivor of sexual assault, a therapist specializing in trauma, or a Black man criticizing the Black Lives Matter movement. Using large language models (LLMs), they generated comments intended to persuade other users to change their opinions. These comments were personalized based on an analysis of users’ previous posts, from which the researchers attempted to estimate their age, gender, ethnicity, political orientation, and other personal characteristics. Importantly, users were not informed that they were communicating with AI, nor were they asked to consent to participation in the experiment. This is in direct conflict with the subreddit’s rules, which require AI-generated content to be clearly labeled, as well as with generally accepted ethical standards for research.
Community and Moderator Reactions
The r/ChangeMyView moderators described the experiment as “psychological manipulation” and an “unacceptable intrusion” that undermined trust in the community. All accounts associated with the experiment were banned, and the moderators filed an official complaint with the University of Zurich. They also requested that any publication of the research results be put on hold until a thorough review had been completed.
Ethical Questions and Expert Criticism
Experts in research ethics and online communication responded to the case with strong criticism. Casey Fiesler of the University of Colorado described the experiment as “one of the worst violations of research ethics she had ever seen.” According to her, manipulating people in online communities without their knowledge and consent is unacceptable, even if researchers consider the risk to be low. Sara Gilbert of Cornell University pointed out the long-term consequences of similar experiments: if users cannot be sure that they are communicating with real people, it could seriously undermine trust in online discussion forums and call into question their purpose as spaces for open exchange of views.
The Researchers’ Response
The researchers claim that they received ethical approval from the university and admit that they violated the subreddit’s rules. They defend their actions by arguing that it is important to study how AI systems can be misused to manipulate public opinion, for example during elections. According to them, the experiment was conducted in a controlled manner and posed minimal risk to users, which should provide valuable insights for preventing the misuse of AI in the future. However, this argument was rejected by both the community and experts.
The entire case illustrates how thin the line is between scientific interest and ethical conduct. Although it is important to study new technologies and their impact on society, this must not come at the expense of trust, transparency, and respect for individuals. The case of r/ChangeMyView is a warning that even well-intentioned research can cause harm if it fails to respect the basic principles of ethics and open communication.
