For usability reasons, for example in RegEx match open tags except XHTML self-contained tags, the 'viewed' counter should show as Commas and excitement ...instead of... No commas and no excitement. It's much harder to decipher that there are a million views on the question just by looking at it.

Some people in the comments pointed out internationalization concerns with it. I do think that since there might be a problem with it, that spaces would probably be a better idea.

  • There have been various proposals, some people want ., some want Space and others want ,. I doubt any will be implemented.
    – Tim
    Commented Apr 25, 2015 at 20:58
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    Commas should never happen due to internationalization concerns. The same goes with dots. The only "correct" option is following the ISO standard which calls for spaces. Commented Apr 25, 2015 at 21:02
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    @psubsee2003 Spaces would be fine I guess then. Just so it can be made easier to read. Commented Apr 25, 2015 at 21:03
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    possible duplicate of Should the network use thousands separators in numbers? Commented Apr 25, 2015 at 21:04
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    While I see what's being meant, it's a feature-request, while that one is a discussion question. Commented Apr 25, 2015 at 21:08
  • @Tim Clearly we should follow C++11 and use '.
    – Ixrec
    Commented Apr 25, 2015 at 23:54
  • @Ixrec The French use that I believe so still not truly international.
    – Tim
    Commented Apr 26, 2015 at 8:42
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    Bump - We have a answer with an accepted solution of spaces, any chance of getting this implemented?
    – Script47
    Commented Aug 19, 2016 at 0:45
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    Please unaccept the answer, since the feature request is not done. I believe SE staff will ignore requests with accepted answers, thinking they're already resolved. Commented Dec 19, 2016 at 15:31
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    @Script47 actually having accepted answer is likely to lower the chances of this being done, as usually accepting an answer here means "this is resolved, no need for further action". Commented Dec 19, 2016 at 15:32
  • @ShadowWizard Done; I didn't realize that accepting an answer would do that. Commented Dec 20, 2016 at 2:21
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    @Justin cheers, now let's hope it will be done... :) Commented Dec 20, 2016 at 6:41
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    +1. See also Related tags don't have thousands separators
    – Hugo
    Commented Dec 20, 2016 at 10:09

3 Answers 3


Sidebar commas coming to you live... in the next production build.

Not taking locale into account at the moment since we don't pretty much anywhere else as far as I know, and consistency wins for the time being.


Agree with the comments, that we need something neutral.


Space would do it, and while this is used by specific countries, others who use comma/dot/other separator should be able to adapt to spaces easily.

This should be fine wherever there is never going to be a decimal point. Otherwise the issue is still present where different folks will be familiar with different characters.


What about using a letter for numbers from 10,000 up, as a simple way to visually show million (M) or thousand (K)?
This should be enough to make it more clear at a glance.


1290302 M
129030 K
12903 K

After thinking about it.

Anything under ten thousand is easily recognisable without requiring anything further (375, 1264, 5733), so can remove those from the equation completely.

5 chars is fairly easy to recognise:

If we use K for "hundred thousands" only, and M for "millions" only, they both become instantly recognisable.

K = hundred thousands
M = millions

Even though the average Subitizing is only about 4, with the familiarity (3) introduces, and considering (1) is negated entirely, this combined "familiarity" makes recognising ten thousands (10000 to 99999) also naturally recognisable, because they are not "the others".

So all number ranges would have a quick to recognise attribute.

hmm... maybe I just need sleep...

Either way, M and K seems legit to me.

  • K or M sounds good - but with the actual number in a tooltip on that (possibly with commas as well!) Commented Apr 27, 2015 at 6:11
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    We don't need something “neutral” because this is an English-language site, so it makes sound sense to follow English-language formatting. It doesn’t matter that the French use commas where we use dots and vice versa, because we aren’t speaking French here. :)
    – tchrist
    Commented Aug 19, 2016 at 2:40
  • @tchrist I get your point, but this is numbers not written word, so why not make it neutral and cater for everyone? TBH, whether we use English decimal separation, spaces, or something else, we need something, as large numbers are hard to quickly recognise.
    – James
    Commented Sep 24, 2016 at 11:48
  • 1 290 302 is pretty ugly to me. Commented Nov 21, 2019 at 22:59

Commas are already used as thousands separators elsewhere on these English-language websites.

  • Here's an example for reputation:

rep bar

  • And another:

profile reputation

  • And a third:

next to a question

  • And for question counts:

total questions asked

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