I was attempting to answer a question today on SO and include some screenshots to help illustrate what I was talking about. Everything was fine until I went to upload my fourth image. Here is what the post screen looked like before I selected to upload: enter image description here

Once I pressed the Image button I got this potentially NSFW image

This was very surprising. Until today I haven't been able to see post images as they were uploaded (corporate blocking), so maybe this has been around a while. But based on what I've now seen, perhaps the corporate blocking was for the best?

Is this a bug or are we trying to fit in better on the internet by increasing our butt to post ratio?

  • 7
    Three links and you are mooned. ;-). Commented May 3, 2011 at 18:58
  • 21
    This looks like a very weird imgur hiccup. What is the butt's URL? And congratulations on creating the buttocks tag!
    – Pekka
    Commented May 3, 2011 at 19:06
  • 7
    The most important part is missing here: What is the content of that post (which, as it seems, was never posted); in particular the URLs? Also, what @Pekka said.
    – balpha StaffMod
    Commented May 3, 2011 at 19:07
  • @balpha I was in the middle of making this post when I saw the Butt. I have since finished the answer and you can find it here: stackoverflow.com/questions/5741684/… Commented May 3, 2011 at 19:17
  • 17
    How can we help him earn the taxonomist badge?
    – juan
    Commented May 3, 2011 at 19:19
  • 39
    @theChrisKent: Thanks. Do you also have the URL of the butt image? I'm asking purely for scientific reasons.
    – balpha StaffMod
    Commented May 3, 2011 at 19:19
  • 31
    What a bizarre mix-up. This will have its place in the annals of Stack Overflow. (no pun intended)
    – Pekka
    Commented May 3, 2011 at 19:22
  • 13
    I think I have a new hobby. k3yku == boring SO screenshot. k3ykU == toy gun.
    – user27414
    Commented May 3, 2011 at 21:04
  • 9
    +1 for question title.
    – Nicole
    Commented May 3, 2011 at 22:45
  • @balpha you fixed the preview to be case sensitive now? Commented May 4, 2011 at 7:02
  • 2
    @ShadowWizard: Yes, it's fixed in the code; it's not deployed yet though.
    – balpha StaffMod
    Commented May 4, 2011 at 7:12
  • @Chris - little sense of humor, eh? Commented Jan 19, 2012 at 12:05
  • 2
    @ShaDowWizArd - no, someone suggested an inappropriate edit to the tag wiki, so I thought I'd remove the temptation ;)
    – ChrisF Mod
    Commented Jan 19, 2012 at 12:09

2 Answers 2


YOU's excellent work and the OP's detailed screenshots made it pretty easy to get to the bottom of this:

You'll note in the screenshot (the one that Daniel censored away) that the image definition is pretty broken; you see something like ![![![bla][3]][ etc. This utterly wrong markdown causes the creation of unbalanced HTML tags, so the tag balancer kicks in. The actual bug is in the tag balancer, which lowercases the content it doesn't remove.

This is fixed in the next build.

Until then, to reproduce: Just go to the edit screen for the post in question and insert a lonely <b> at the beginning.

  • 63
    "... get to the bottom of this:" You're so cheeky. Commented May 3, 2011 at 20:03
  • 5
    @gnostradamus: There's nothing funny here. This was a simple string manipulation issue.
    – balpha StaffMod
    Commented May 3, 2011 at 20:11
  • 6
    @badp: "posterior"ity, you mean.
    – jscs
    Commented May 3, 2011 at 20:32
  • 23
    Please don't be anal about word choices here. Let's put this matter behind us and move on.
    – Jin
    Commented May 3, 2011 at 21:05
  • 6
    This is the most fanny thing I've read today on Stack Overflow.
    – Pekka
    Commented May 3, 2011 at 21:11
  • 21
    Kudos to balpha and YOU for their keen ASSessment and diligent ASSistance in addressing this crack in the system. You two are real ASSets to SO. There was clearly a hole in the code, and someone will need to keep a [brown] eye on it.
    – user27414
    Commented May 3, 2011 at 21:39
  • All of this fits together way to neatly to set up an endless well of puns, so I remain highly sceptical.
    – Kerrek SB
    Commented Dec 30, 2013 at 22:27

Well, its a preview's lower case issue between



(Meanwhile, stack has been inserted into many Stack Exchange image URLs, somehow making the original URLs rot away.)

  • 28
    YOU's brilliant powers of deduction win once again! You should work for the police or something. Good stuff.
    – Pekka
    Commented May 3, 2011 at 19:19
  • 15
    That's some mighty fine police work there, YOU
    – random
    Commented May 3, 2011 at 19:26
  • This is actually extremely hilarious :)
    – user163250
    Commented Jun 27, 2014 at 22:30

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