Study: Reddit grows more negative over time as users seek to stand out
Harvard researchers found that the drive to differentiate—not just algorithms—pushes online communities toward negativity.
What to know
- A Harvard study of 2+ billion Reddit comments shows both communities and individual threads systematically become more negative over time, independent of algorithmic amplification.
- Researchers identify "differentiation"—the drive to stand out—as a core mechanism: users post negative comments to say something new when positive observations have already dominated.
- The findings challenge the assumption that algorithms alone drive online toxicity, suggesting human psychology plays an equally important role.
- Reddit commenters debate whether negativity is genuinely new or whether it reflects both dopamine-driven incentives and current real-world conditions.
The dispute Whether Reddit's negativity is a novel trend driven by algorithms and differentiation, or simply an inevitable feature of how human psychology and media incentives have always worked.
Negativity is not new; dopamine-driven incentives and traditional media have long promoted it.
-
“Being from the before times people were way more fun and nuanced. The negativity is a dopamine driven spiral, even old media did it 'if it bleeds it leads'.”
iguesssoppl · Reddit ↗
Reddit has a specific nihilistic culture where negativity creates a self-reinforcing loop of intellectual laziness.
-
“If everything is always fucked, every attempt to improve anything is pointless, and anyone who thinks otherwise is an idiot, then you never actually have to do anything. It becomes a self-reinforcing loop where people constantly look for…”
breadtangle · Reddit ↗
External world conditions and selection bias—satisfied people simply leave discussions—explain the trend.
-
“Satisfied people have less to talk about so they get done earlier with discussions and tune out faster of participating in them.”
glarius_is_glorious · Reddit ↗
“Negative information is just much more diverse than positive information. If you're talking about 'The Odyssey,' this new Christopher Nolan film, the top comment in a thread might be 'I liked it' — but then what else is there to say? If you want to stand out and say something new, you have to talk about something you disliked about the film.”
Joshua Conrad Jackson, Incoming Harvard psychology professor · Harvard Gazette · Aug 14
Joshua Conrad Jackson Incoming Harvard psychology professorJackson et al. Research team
How it unfolded 5 developments · newest first pressvideopostscomments
-
5
Study reaches wider audience on social media
The research gains traction on X/Twitter, with a post from @Pirat_Nation drawing 2,617 likes and 148 comments, amplifying the study's findings about Reddit's increasing negativity.
-
Research suggests Reddit has become more negative over time, and there may be a surprisingly simple reason behind it. Researchers looked at more than 2 billion Reddit comments from over 2,000 communities. They found that the longer a community exists, the more negative it tends
3 voices in this stretch — best 3 here
-
T
https:// news.harvard.edu/gazette/story /2026/08/does-vitriol-make-you-feel-special/ # SocialMedia # Psychology
-
“The entire website of Reddit has become more negative over time” is an interesting claim because it connects individual comment habits with the design and culture of whole communities. It makes me wonder whether strong moderation, slower discussion norms, and more visibility for constructive replies could interrupt that trend. Even small changes…
-
-
4
Users cite external conditions and satisfaction dynamics
Commenters suggest the world's current negativity bleeds into Reddit, and that satisfied people simply disengage from discussions rather than contribute positive comments.
“Satisfied people have less to talk about so they get done earlier with discussions and tune out faster of participating in them.”
— glarius_is_glorious -
They’re always be a light and dark side to everything to put it bluntly. Some people like things some people hate them. But to put all your energy into liking one thing or hating one thing is an extreme. Do you eat the same thing every day? It would be boring. Which actually brings me to billionaires, if you have everything what gets you going?…
6 voices in this stretch — best 3 here
-
It also used to have jailbait, fappening, nazi subs, and was a massive hub for gamergate which was the mainstreaming door to what is the modern day anti woke manosphere. I don't think its as black and white as "it was just better back then". Happy doesn't necessarily always equal good if its at the expense of others. But I do agree its definitely…
-
Don't think this is just bots. Satisfied people have less to talk about so they get done earlier with discussions and tune out faster of participating in them.
-
-
3
Commenters identify Reddit's nihilism and negativity loop
Users identify a self-reinforcing cycle where Reddit users assume everything is broken, use negativity to justify inaction, and dismiss improvement efforts as pointless.
“If everything is always fucked, every attempt to improve anything is pointless, and anyone who thinks otherwise is an idiot, then you never actually have to do anything.”
— breadtangle -
They don't address it directly in the article, but I'm more concerned with Reddit's nihilism. It's basically negativity with a superiority complex. If everything is always fucked, every attempt to improve anything is pointless, and anyone who thinks otherwise is an idiot, then you never actually have to do anything. It becomes a self-reinforcing…
2 voices in this stretch — best 2 here
-
Where did I say wealth inequality? I wasn’t talking about that at all. Also the topic of the thread is Reddit getting negative and your stupid ass immediately gets negative about something I didn’t even say 😂. 👩🏼🍳’s 💋
-
-
2
Reddit users debate whether negativity is old or new
Commenters dispute the novelty of online negativity, with some citing dopamine-driven incentives in traditional media and others noting Reddit's historical toxicity alongside new algorithmic drivers.
“Being from the before times people were way more fun and nuanced. The negativity is a dopamine driven spiral, even old media did it 'if it bleeds it leads'.”
— iguesssoppl -
Yeah I don't buy that excuse either. Being from the before times people were way more fun and nuanced. The negativity is a dopamine driven spiral, even old media did it 'if it bleeds it leads'. This is nothing new. Old media was so aware of it they'd typically be mindful of including at least some positive reports too. Any given day 100s of lives…
2 voices in this stretch — best 2 here
-
reddit is only good for information sharing. anytime a post is about something subjective, 90%+ of the comments are the scum of society yapping
-
-
1
Harvard study published on Reddit negativity spiral
Joshua Conrad Jackson and colleagues publish findings in PNAS showing that Reddit has become more negative over time, with longer-running communities and threads trending more negative. The study analyzed 2+ billion comments from 2,150 Reddit communities.
-
D
“We found that the entire website of Reddit has become more negative over time. Moreover, the longer a given community exists, the more negative it becomes — and the longer a comment thread continues, the more negative the thread becomes. This is the first time someone has shown that, so that’s a finding in and of itself.” # socialMedia https://…
3 voices in this stretch — best 3 here
-
Everybody loves to argue and criticize stuff. They come here looking for a fight. They always have to throw in why technically somebody is wrong. I deleted Reddit for a while and when I came back I decided to scale back the amount of arguing and point proving I was doing
-
Another really simple idea is that if you get a cash loan above, say, $10 million collateralized with investments, then you have "realized" those investments. It's astonishing that we let people convert stocks to cash and still consider them unrealized for tax purposes.
-
What people are saying 3 voices from 1 site · best of 16 · verbatim
The conversation centers on whether the study's findings are surprising and what truly drives Reddit's negativity. Users are split between those who see the research as obvious (negativity has always existed in media and human nature), those who blame specific toxic subcultures and algorithmic incentives, and those pointing to external realities—both the world's current negativity and the self-selection bias that keeps satisfied users from engaging.
- Aug 15
-
They may be blocking you. You can't see comment history of someone who's blocked you
-
Well, I mean, the world is a little bit negative rn. It probably starts with a lighthearted subject until people start relating it to the realities of today!
-
I’d say that reality might be having an impact on us. I was hopeful during the Obama years and it’s been steadily downhill since.