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On this question, I'm seeing bananas in two of the comments:

enter image description here

Am I going bananas?

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6  
It's a Unicode character: fileformat.info/info/unicode/char/1f34c/index.htm –  Etienne de Martel Mar 7 '13 at 18:41
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I see our robot has done well. –  Mysticial Mar 7 '13 at 18:41
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@Mysticial: is this robot, perchance, a monkey? –  nneonneo Mar 7 '13 at 18:42
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What's stupid is that minimum character limit –  Cat Plus Plus Mar 7 '13 at 18:42
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This sort of monkey business is not at all appeeling. –  Josh Caswell Mar 7 '13 at 18:44
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Is that a banana in your comment, or are you... –  Andrew Barber Mar 7 '13 at 18:45
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btw did you know that bananas are radioactive –  Cat Plus Plus Mar 7 '13 at 18:46
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@0A0D Careful, the first comment answers the question - correctly. –  Daniel Fischer Mar 7 '13 at 18:47
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πŸ’ + 🍌 = πŸ’• ! πŸ˜„ –  nneonneo Mar 7 '13 at 18:47
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@0A0D A comment correctly answering the question is constructive, isn't it? –  Daniel Fischer Mar 7 '13 at 18:49
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@DanielFischer: meta.stackexchange.com/questions/19756/how-do-comments-work It's noise and before anyone says that its just my opinion, every one of those that I have flagged get deleted. They are also not constructive. Something like, "Yes, that was fixed in C# 3.0. What do you not understand about the API changes?", is better than "Yes <crap characters>" –  staticx Mar 7 '13 at 18:51
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Constructiveness is not a function of length –  Cat Plus Plus Mar 7 '13 at 18:54
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@0A0D No that's longer not better –  Cat Plus Plus Mar 7 '13 at 18:54
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@0A0D To be fair, "Yes, that was fixed in C# 3.0. What do you not understand about the API changes?" is less constructive than "Yes.🍌🍌🍌🍌🍌🍌" because the former is provocative and flame bait. –  Mysticial Mar 7 '13 at 18:58
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"Yes.🍌🍌🍌🍌🍌🍌" was clearly a constructive comment: the asker responded with "thx.🍌🍌🍌🍌🍌🍌". Bananas offered, bananas accepted. –  nneonneo Mar 7 '13 at 19:02

2 Answers 2

up vote 27 down vote accepted

Those are instances of U+1F34C Κ™α΄€Ι΄α΄€Ι΄α΄€. I use them as a filler in comments. I used to use U+2063 ΙͺΙ΄α΄ ΙͺsΙͺΚ™ΚŸα΄‡ sα΄‡α΄˜α΄€Κ€α΄€α΄›α΄Κ€, but since some people complained they were seeing the invisible separators as squares, I switched to bananas. They also have the advantage of being represented in UTF-16 as surrogate pairs, and thus each counts as 2 for the 15-char limit.

They look like this on my system (Windows 7, Firefox):

Mac OS ships with some fonts with Apple extensions to OpenType that allow the use of colours in glyphs, and that's why you see them flashy like that.

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13  
And the moral is that SO is bad at counting length of Unicode strings –  Cat Plus Plus Mar 7 '13 at 18:44
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I still see squares, and please don't do that. –  animuson Mar 7 '13 at 18:44
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@animuson Get better browser and better fonts –  Cat Plus Plus Mar 7 '13 at 18:44
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Bananas are great and healthy. I think this sends a good message to the SO community in general. –  user210920 Mar 7 '13 at 18:44
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I see the bananas as squares on Chrome/OS X. I want to see these bananas! –  ThinkingStiff Mar 7 '13 at 18:45
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@ThinkingStiff Chrome doesn't do font fallback (yes, it's that bad). –  rightføld Mar 7 '13 at 18:45
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Yay for bananas! –  Pëkka Mar 7 '13 at 18:52
    
'tis short. –  tohecz Mar 7 '13 at 18:54
    
^^ you see, I don't need bananas to make short comments ;) –  tohecz Mar 7 '13 at 18:54
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Yep –  Mysticial Mar 7 '13 at 19:00
    
Yes, yes, yes!! –  R. Martinho Fernandes Mar 7 '13 at 19:00
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ZWSP does not have carbohydrates. –  R. Martinho Fernandes Mar 7 '13 at 19:12
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@tohecz your "solutions" suck moar than bananas. It makes users try to clean their screen –  PeeHaa Mar 7 '13 at 19:48
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β€ͺβ€ͺβ€ͺβ€ͺβ€ͺβ€ͺβ€ͺβ€ͺβ€ͺβ€ͺβ€ͺβ€ͺβ€ͺπŸ‘Œ –  tchrist Mar 7 '13 at 21:29
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@CatPlusPlus Quite right: they do not count Unicode characters at all. They only count old-fashioned 16-bit code units. It’s a known bug. –  tchrist Mar 7 '13 at 21:30

It's shorthand for "flag this comment as noise so that it can be removed".

The banana itself is a reference to a famous theorem.

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3  
Wouldn't πŸ’πŸ’πŸ’πŸ’πŸ’πŸ’πŸ’πŸ’πŸ’πŸ’πŸ’πŸ’ be more apt? –  nneonneo Mar 7 '13 at 23:42
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No🍌🍌🍌🍌🍌🍌🍌🍌 –  Doorknob ε†° Mar 7 '13 at 23:44

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