Fixing Stack Overflow's toxicity with $500

Stack Overflow is amazing. Stack Overflow is awful. If the saying “two things can be true at once” ever made sense, it’s here.

Back in 2020, I applied for a job at Stack Overflow. The final step of the process was a design exercise, and they offered $500 USD as retribution for the time invested in it.

I offered a potential solution to Stack Overflow’s most toxic trait. The company’s best spent $500 if you ask me!

Don’t you know that you’re toxic? 💃

Everybody that’s used Stack Overflow knows it’s not a forgiving place, but why?

I’m frozen by the idea that I’m going to say something wrong. Stack Overflow is not a welcoming place where I can be wrong.

A Stack Overflow user

That fear has a source: getting criticized and judged by “the elites”. And the feature that rewards that behavior is downvoting.

When you read mean comments or see something that everyone has downvoted, you’re dissuaded from wanting to get involved.

A Stack Overflow user

What the research says

Funny enough, there is extensive research showing that downvoting is detrimental to online communities. One study calls it a “vicious circle of negative feedback”.1, 2

Headers of different scientific publications

Specifically, the research shows:

  • Contributors who are downvoted produce lower quality content in the future, and that content is valued even less by the rest of the network.2
  • Contributors are more likely to downvote others after they have been downvoted themselves.2
  • Votes are influenced by the votes that came before them, more than by the content of the comment.3
  • Hiding downvotes increased the share of commenters who are not usually vocal.4, 5
  • Longer answers are generally judged by peers as higher quality than shorter ones.

So, with all of these findings on the table, why are downvotes strongly encouraged on Stack Overflow?

Elementary, my dear Watson

The answer lies in a post by Jeff Atwood, co-founder of Stack Overflow: “The Value of Downvoting, or, How Hacker News Gets It Wrong”, from March 2009.6

The Stack Overflow blog post "The Value of Downvoting, or, How Hacker News Gets It Wrong" by Jeff Atwood, March 9, 2009

He opens by quoting Paul Graham:

…the broken windows theory applies to community sites as well. The theory is that minor forms of bad behavior encourage worse ones: that a neighborhood with lots of graffiti and broken windows becomes one where robberies occur.

Paul Graham

Atwood then notes that the two sites (Hacker News vs Stack Overflow) have different goals, so what works for one might not work for the other. According to Atwood, Stack Overflow is a Q&A site with accidental discussion, and Hacker News is a link sharing site built around discussion.

Stack Overflow and Hacker News logos

His case for downvoting is that it doubles the dataset:

If you add back in the negatives, suddenly the range is doubled. An evil or incorrect post is now different than a mediocre or uninteresting post, because it will have downvotes and a negative score.

Jeff Atwood

He does acknowledge that downvoting is a negative behavior that can evolve into toxicity, and he quotes a reader who had watched it happen before:

I stopped posting on several usenet newsgroups because the major participants were just nasty and sarcastic. Don’t let this happen to Stack Overflow.

A reader, quoted by Atwood

Yet, Atwood argues that the saner level of discussion on Hacker News has nothing to do with the harder-to-reach downvote button. He puts it down to “the fact that Hacker News is relatively young, having launched in February 2007, and the small size of the community.”

Funny how, more than a decade later, Hacker News is still civil, and Stack Overflow is still toxic.

Steve Harvey on his show, mouth open in disbelief

Atwood also points out that there are ten times as many upvotes cast as downvotes.

A two row table from the post: upvotes 1,251,020, downvotes 122,141

This lets him make the case that downvoting is good:

Without downvotes, how can you possibly tell the difference between a post that is harmless but uninteresting, and one that is actually wrong or harmful? Disallowing downvotes is actively harmful to community.

Jeff Atwood

Three things to take from that post

  1. Atwood built the whole system on an opinion, not on data. He does not mention or reference a single study, piece of research, or test. The studies above discredit his entire premise.
  2. His focus is on data, not on people. As he sees it, the community on Stack Overflow is a side effect, not a primary drive.
  3. More than a decade later, his opinion still permeates the entire organization.

And his ideas have spread through the community into widely accepted opinions such as this one, with 268 upvotes: “Don’t over-protect users. Judge the quality of the post dispassionately. Poorly written question? Downvote and move on.”

A Meta Stack Overflow answer with 268 upvotes listing reasons to downvote and move on, ending "The list goes on, and on, ad nauseam"

Light at the end of the tunnel

Most people are willing to take the high road, though. Under a question about whether to explain a downvote, one user asks why he should “waste even a moment explaining a down vote”.

Another answers that, if you care enough to downvote, you should care enough to tell the new poster what they are doing wrong.

Four Meta Stack Overflow comments from April 2014: jfs asks downvoters to leave a comment, Denis de Bernardy asks why he should waste a moment explaining, AmeliaBR answers that caring enough to downvote means caring enough to say what is wrong

Users are asking for a way to give feedback instead of downvoting into oblivion, because they want the community to grow.

A Meta Stack Overflow comment by Patricia Shanahan ending "it would be more helpful to explain why"

This is where Atwood got it wrong. Stack Overflow is a community made of people, and people need to feel safe to engage and participate in a community.

Here’s the fire, Prometheus

For the community to provide relevant feedback, it needs the tools to do so. Here’s what I proposed.

A downvote asks for a reason. The reason stays attached to the answer, so the author knows what to fix and the next reader knows why the score is what it is.

A dialog titled "Why should this answer be downvoted?" with four reasons
The answer at -18 with a banner reading "This answer is not recommended by the community" and its reason

Incredibly ironic how such an idea is not new, yet it always fell on deaf ears with Atwood. Here’s one commenter on his own blog post:

A commenter in a post mentions how he'd like to know the reason for a downvote

Feeling closer in the distance

A community is stronger when its members feel close to one another. Sharing interests and experience with each other is a great way to feel closer to someone. Reddit’s flairs and Discord’s roles are great examples of this.

On Stack Overflow it could sit right next to the name: what someone does and for how long, beside their answer.

A Stack Overflow answer with 1348 votes whose authors carry the flair "In IT since 1986" and "R&D Dev and Full Stack"

Keeping questions high quality

Once the community is fixed, how do we make sure things like questions remain high quality? By moving the friction to the moment a question is written, where it helps, instead of after it is posted, where it punishes.

Asking for the language first, narrows the question to the right topic. A search of existing questions runs on the title before the question goes out so the duplicate is caught by the asker, not by a downvote.

The current "Ask a public question" form on Stack Overflow
A first step asking "What language is your question about?"
A title step listing existing questions under "Have you checked if any of these existing questions can help?"

Deaf ears

The difference between an artist and a designer is simple: the artist creates for himself; the designer creates for others.

When designing a product or system, it’s important to step out of oneself and be excited when our theories are proven wrong, much like a scientist. Easier said than done, of course, as we all have egos to protect.

That said, it’s confusing to me how the writing on the wall is so obvious, yet Atwood, in 2026, remains oblivious to it.

A LinkedIn user's comment on how Stack Overflow is toxic and he abandoned it
A comment thread discussing if Stack Overflow is toxic between Atwood and a user
Atwood truly believes Stack Overflow is not toxic.

Roads? Where we’re going we don’t need Stack Overflow.

Stack Overflow’s future is bleak. It is essentially a ghost town at this point7, 8, the decline started way before LLMs. It won’t be long before the corporate owner decides it’s too expensive to run and it becomes another archive.

It’s the system’s fault. It’s everybody’s fault. To quote Morpheus:

“You have to understand, most of these people are not ready to be unplugged. And many of them are so inured, so hopelessly dependent on the system, that they will fight to protect it.”

Godspeed, Stack Overflow.

A graduation cap saying I'd like to thank Stack Overflow for this degree
My favorite Stack Overflow meme.9

Open questions

  • How might users share information about their interests and expertise with us?
  • How might we encourage a user experiencing hesitation to answer a question?
  • How might we improve question-finding so that it’s better targeted?