Over half of all reddit posts go completely ignored

A couple years ago, Eric Gilbert published a research article showing that more than half (~52%) of all popular links submitted to /r/pics go completely ignored the first time they’re posted. I found this phenomenon to be strange because those 52% of links later went on to become wildly popular the second or third time they were posted, meaning that it’s not just bad or uninteresting links that are going ignored on reddit: On a daily basis, we’re missing out on hundreds of interesting links because no one bothered to upvote them.

One drawback of Gilbert’s study is that he focused solely on /r/pics. While /r/pics is one of the most popular subreddits, it certainly isn’t representative of reddit as a whole. For that reason, my undergraduate assistant Robert Bato and I decided to follow up on Gilbert’s findings to see if all of reddit was following suit. To do that, we collected every single post submitted to reddit in August 2014 and filtered them into 3 categories based on their score:

  • >1 (received at least one upvote),
  • <1 (received mostly downvotes), and
  • =1 (received no votes at all).

Below is the breakdown of those posts.


If we use “<1" and "=1" as a proxy for "ignored" (as in, maybe 1 or 2 other people saw it and voted on it), then roughly 52% of all reddit posts went ignored in our sample. That's right: Whenever you post a link on reddit, there’s a 50/50 chance that it will be ignored (if you post like the typical redditor). It seems Gilbert was right on the money when he claimed that reddit is suffering from widespread underprovision.

What does this mean for reddit?

Logically, if we consistently find that half of all reddit posts are going ignored, that leaves us with the question: Has reddit reached its content carrying capacity? Is it impossible for reddit to effectively handle more than 50% of its posts on a daily basis?

When I tallied the ignored posts based on defaults vs. non-defaults, the default subreddits accounted for about 2/3 of all the ignored posts on reddit. This tells us that the defaults are likely the main source of ignored posts: Only so many posts can receive adequate attention in a subreddit every day — even a popular one — and the rest are simply left to wither and die without a single upvote in reddit’s archives.

On the other end of the spectrum, the above statistic also tells us that 1/3 of all ignored posts are due to smaller subreddits that don’t receive enough attention from users. These subreddits have users post links to them on a regular basis, but no one bothers to read the posts — or at least upvote them.

Both issues highlight that reddit still suffers from an over-concentration of users in the default subreddits.

This conclusion is nothing new: I was writing about the flaws of reddit’s default subreddit system almost 2 years ago. Despite reddit’s continuous efforts to drive users into smaller subreddits, most users still focus on the defaults.

So, what’s the solution? I see two possibilities:

  1. reddit users need to upvote more and post less. If there’s too many posts not receiving enough upvotes, then this is the obvious solution. But reddit’s karma system doesn’t reward people who upvote, so it seems unlikely that this will work with the current incentive system.
  2. reddit needs to filter more posts into smaller subreddits. The fewer posts a subreddit receives, the more attention (and possibly upvotes) each individual post will receive. Thus, we can increase reddit’s content carrying capacity by filtering the posts typically going into the defaults into smaller, more niche subreddits.

The problem with solution #2, of course, is that the reddit front page disproportionately rewards users who make it there. So even if there’s an incredibly small chance of your post receiving any attention in a default subreddit compared to the smaller subreddits, if your post does reach the front page, it pays off more than if you posted in a smaller subreddit and more than makes up for all of your failed posts. (Game theorists might be thinking of risk analysis at this point…)

Thus — 2 years later — I still believe reddit must do away with the default subreddit system if it stands a chance of reaching its maximum potential.

A historical perspective on ignored reddit posts

After I shared this article, /u/minimaxir repeated this analysis on all of reddit’s posts back to 2008. I’ve shared his chart below with his permission.


Between 2008 and 2010 — reddit’s nascent years — upwards of 75% of all reddit posts went ignored. Once reddit started becoming popular in 2010 and beyond, we see the ratio of ignored posts go down to an even 50/50, then oddly stagnate there. This suggests to me that ~50% of all posts is reddit’s carrying capacity: Regardless of the number of users that join reddit, the increased number of upvotes from new users will be offset by the increased number of posts they submit. As a consequence, just waiting it out won’t solve reddit’s underprovision problem; we need to rethink reddit’s default subreddit structure.

You can find /u/minimaxir’s data source here.

What does this mean for you?

We all know that it’s tough to have a successful post on reddit, but now we’re beginning to learn that less than half of all posts receive just a single upvote — an extremely loose criterion.

This means that even if you make the best post possible on reddit, there’s still a high chance that it’s going to fail right out of the gate. Of course, if you pay attention to the reddit front page, there are some redditors who seem particularly talented at making successful posts on reddit — and that’s because there are some minor things you can do to increase your post’s chances of being noticed.

If you want to learn more about what factors into a successful reddit post, read this guide.

Dr. Randy Olson is a Senior Data Scientist at the University of Pennsylvania, where he develops state-of-the-art machine learning algorithms with a focus on biomedical applications.

Posted in data visualization, reddit Tagged with: , , ,
  • (That explains what’s happened to my posts to dataisbeautiful!)

    “Whenever you post a link on reddit, there’s a 50/50 chance that it will be ignored.”

    While certainly interesting, it’s not clear your study is comparable to Gilbert’s. He’s looking at successful duplicated posts, but I think you and Bato are looking at all posts (for a given month). So Gilbert’s sample can claim popularity isn’t driven by quality, but for more general sample, it could be the no-vote posts were just bad quality, and there was no element of chance involved (the voting was working correctly). I doubt that’s the case, but don’t see any new evidence for it.

    Also, if you’re going to make a pie chart, please make it circular!

    • >it could be the no-vote posts were just bad quality, and there was no element of chance involved (the voting was working correctly). I doubt that’s the case, but don’t see any new evidence for it.

      Absolutely — that’s certainly a possibility. When writing this article, I was synthesizing Gilbert and our findings: All of reddit seems to suffer from a large portion of posts being ignored, and as Gilbert shows, many of those posts were in fact later determined to be worthy of popularity. It’d be great if we could think of a way to extend Gilbert’s methods to all of reddit.

      >Also, if you’re going to make a pie chart, please make it circular!

      Small mistake that we didn’t notice until the chart was up. 🙂

  • MetusBatmanV2

    Newsflash, karma and upvoting is moronic.

    • RookActual

      I have upvoted your comment to provide you a sense of positivity in support of your viewpoint. Such social validation may be moronic, but it carries real emotional value and offers a means of quantitative social calibration for every user to refine the content they output.

      • MetusBatmanV2

        You’re a moron.

    • O’rry ???

      • MetusBatmanV2

        Cliche moron.

  • Sir Jorge

    Did you count the people that are paying to get front page placement? It’s funny how much of that goes on, and no one comments on it.

    • Don’t worry, I downvote lots of them

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  • radii

    the best thing for reddit to do is simply divide all popular subreddits (where relevant into types r/funny r/funnymemes r/funnypics r/funnyvideos r/funnynsfw r/funnytext etc.

    this centralizes the content but divides into subgroups of the subreddit

  • x

    If we upvote everything, then it means nothing!

    Just because I didn’t up or down vote something doesn’t automatically mean I didn’t see it.

    Hey n00b, it works like this:
    – upvote the great stuff
    – don’t upvote nor downvote the average stuff
    – downvote the stuff that sucks


    • MetusBatmanV2

      You’re a moron, insecure, and cliche.

  • lopan

    Except for the most innocuous (e.g., cat gif) kind of content, Reddit voting is largely controlled by bot armies. It’s “Faux-cial media.”

  • butthole


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  • Noumenon72

    I’ve had many posts that attracted 20, 30 comments but ended up at 0 or 1 upvotes because I don’t know, people don’t want other people to read their comments? It’s not just people who disagree with me, people just don’t upvote discussion questions. So you may want to take a sample of those “zero-interest posts” and see how many have one or multiple comments, indicating that they were seen and responded to.

  • geotheory

    I suspect posting less will have more impact than more up-voting. Presumably a large proportion (majority?) of users are either (a) joining a specific page/discussion or (b) looking for interesting discussions to join. The first group only become relevant if they go on to browse discussions. The second are actively seeking pages with ongoing discussions, so are more likely to ignore pages with no votes or activity. Presumably the higher the overall proportion these groups make up, the more pages will inevitably be ignored..?

    • Exactly, which is why I think it would be wise of reddit to incentivize voting behavior more. As-is, voting is mostly an altruistic act, which is why I think such a tiny fraction of reddit’s visitors participate in it.

  • Facts About Bok Choy

    if you’re actually a doctor, why do you need patreon money

    • I use Patreon as a tip bucket if anyone wants to support my work.

  • hmm how do controversial posts or posts that get a lot of attention and downvotes factor into this analysis?