this post was submitted on 28 Apr 2025
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A team of researchers who say they are from the University of Zurich ran an “unauthorized,” large-scale experiment in which they secretly deployed AI-powered bots into a popular debate subreddit called r/changemyview in an attempt to research whether AI could be used to change people’s minds about contentious topics.

more than 1,700 comments made by AI bots

The bots made more than a thousand comments over the course of several months and at times pretended to be a “rape victim,” a “Black man” who was opposed to the Black Lives Matter movement, someone who “work[s] at a domestic violence shelter,” and a bot who suggested that specific types of criminals should not be rehabilitated.

The experiment was revealed over the weekend in a post by moderators of the r/changemyview subreddit, which has more than 3.8 million subscribers. In the post, the moderators said they were unaware of the experiment while it was going on and only found out about it after the researchers disclosed it after the experiment had already been run. In the post, moderators told users they “have a right to know about this experiment,” and that posters in the subreddit had been subject to “psychological manipulation” by the bots.

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[–] groolthedemon@lemmy.world 73 points 1 day ago (2 children)

I remember when my front page was nothing but r/changemyview for like a week and I just unsubscribed from the subreddit completely because some of the questions and the amount of hits felt like something fucky was going on. Guess I was right.

[–] quid_pro_joe@infosec.pub 33 points 1 day ago (1 children)

Same happened to the relationshipsadvice and aita subreddits, the number of posts suddenly skyrocketed with incredibly long, overly-detailed stories that smacked of LLM-generated content.

[–] groolthedemon@lemmy.world 3 points 11 hours ago

Rateme and Roastme were going bonkers for awhile too. That whole site just seems to be AI slop anymore.

[–] Ledericas@lemm.ee 5 points 12 hours ago (1 children)

Alot if it was leaning very right wing

[–] groolthedemon@lemmy.world 3 points 11 hours ago

Indeed. A lot of fascist Nazis sympathizers brigading in every thread.

[–] TwinTitans@lemmy.world 42 points 1 day ago (2 children)

That’s place is mostly bots anyway, I’m sure no one noticed.

[–] ijedi1234@sh.itjust.works 8 points 23 hours ago (1 children)

It's like the MMO Erenshor. Every player other than yourself is a bot pretending to be a human being.

[–] PraiseTheSoup@lemm.ee 2 points 8 hours ago

Unless they PK me for no reason while spamming the chat with "jajajaja" it's not immersive.

[–] ByteJunk@lemmy.world 5 points 1 day ago

Why you gotta call me out like that

[–] besselj@lemmy.ca 39 points 1 day ago (1 children)

It'll be interesting to find out if this research got IRB approval prior to the study

[–] NOT_RICK@lemmy.world 12 points 1 day ago (1 children)

I hope for the sake of their careers they did

[–] finitebanjo@lemmy.world 5 points 1 day ago

Given the highlighted positions the bots took, I'm not sure we should worry about their specific careers ending.

[–] nectar45@lemmy.zip 33 points 1 day ago (1 children)

Ok maybe I dont miss reddit after all...

[–] notabot@lemm.ee 25 points 1 day ago (1 children)

It'd be pretty trivial to do the same here, 1700 or so comments over 'several months', is less than 25 a day. No need even for bot posting, have the LLM ingest the feed, spit out the posts and have the intern make accounts and post them.

[–] nectar45@lemmy.zip 3 points 1 day ago (3 children)

Well at least this place is exclusively where people who got banned from reddit end up so they will struggle to find us at least....

[–] notabot@lemm.ee 9 points 1 day ago (1 children)

Hey, I didn't get banned (yet), I just prefer the vibe here.

[–] turtlesareneat@discuss.online 3 points 1 day ago (1 children)

I created my account to have one ready, then when I got banned, it was easy to hop over

[–] Ledericas@lemm.ee 1 points 12 hours ago

I made multiple accounts over the years in case I got one accidentally banned, the others one I could avoid the same sub. But reddit purged alot of accounts, In series of ban waves.

[–] AntiBullyRanger@ani.social 3 points 13 hours ago
[–] Ledericas@lemm.ee 2 points 12 hours ago

We can tell they couldn't immediately detect and ban bots as reddit claimed or mean they reddit probably did detect but dint bother blocking the content, because they want AI engagement.

[–] RightHandOfIkaros@lemmy.world 30 points 1 day ago* (last edited 1 day ago) (1 children)

To be fair, I can see how it being "unauthorized" was necessary to collecting genuine data that isn't poisoned by people intentionally trying to soil the sample data.

[–] Maeve@kbin.earth 21 points 1 day ago (2 children)

This is straight up unethical, at best.

[–] Appoxo@lemmy.dbzer0.com 11 points 16 hours ago
[–] TonyOstrich@lemmy.world 6 points 15 hours ago

It can be both.

[–] ogmios@sh.itjust.works 29 points 1 day ago

I remember the good old days when the NSA had to physically fly an airplane over the border and spray one of our towns with chemicals if they wanted to run psychological experiments on people!

[–] RememberTheApollo_@lemmy.world 24 points 10 hours ago (1 children)

Gotta love the hollow morality in telling users they’ve been psychologically manipulated this time but yet do nothing about the tens of thousands of bots doing the exact same thing 24/7 the rest of the time.

[–] BoxOfFeet@lemmy.world 4 points 9 hours ago

Right? The only difference here is that they fessed up.

[–] PumaStoleMyBluff@lemmy.world 22 points 1 day ago

This is what should get departments defunded, not DEI 🫠

[–] DrBob@lemmy.ca 21 points 1 day ago* (last edited 1 day ago) (1 children)

...posters in the subreddit had been subject to “psychological manipulation...

There are no users there. It's just bots talking to other bots.

[–] Ledericas@lemm.ee 3 points 12 hours ago

Russian bots vs research bots

[–] renamon_silver@lemmy.wtf 16 points 22 hours ago

Ah, to freely give away my data to a corporation whilst acting as a lab rat...

[–] dukeofdummies@lemmy.world 15 points 23 hours ago (1 children)

... well how many deltas did it get?

I hate it as an experiment on principle but c'mon how well did it do?

[–] dukeofdummies@lemmy.world 18 points 23 hours ago (1 children)

Found it, 137 deltas.

Impressive, a bit worrisome

[–] ArtificialHoldings@lemmy.world 1 points 9 hours ago* (last edited 8 hours ago)

Feels like AI would really excel in this. It's personalized argumentation that can basically auto complete for the most statistically likely (ie popular) version of an argument. CMV posts largely aren't unique, there's a lot of prior threads to draw from which got deltas.

[–] LarmyOfLone@lemm.ee 13 points 11 hours ago* (last edited 11 hours ago) (2 children)

r/changemyview is one of those "fascist gateway" subs, or at least one of the subs that I suspect as that. The gateway works by introduing "controverial" topics which are really fascist but they get upvote because "look at this idiot!". But slowly it moves the overton window and gives those people who actually do believe in inequality a space to grow in. Opinions that are racist, anti-feminist, anti-trans, ultra-nationalist, authoritarian or generally against equality and justice.

Reddit was slowly boiled over the last decade like a frog.

And you can be absolutely sure that not only researchers are researching this for science, there are plenty of special interests that do this. It really started with climate change denial.

[–] lmmarsano@lemmynsfw.com 2 points 8 hours ago* (last edited 8 hours ago)

they get upvote because “look at this idiot!”

seems like a great reason: upvoted

[–] atempuser23@lemmy.world 13 points 8 hours ago

First AI came for the artists, then coders, now the trolls and shitposters.

How dare they take the jobs from hardworking Russians influencing online discourse.

[–] AmidFuror@fedia.io 9 points 1 day ago

If you think this is shocking, just wait for the big reveal about r/StanfordBasement.