Was unable to find rationale for separate tags accros SE sites.

Tag function According general definition in information systems, a tag is a (unstructured) keyword or term assigned to a piece of information (such as an Internet bookmark, digital image, database record, or computer file). This kind of metadata helps describe an item and allows it to be found again by browsing or searching. Tags are generally chosen informally and personally by the item's creator or by its viewer, depending on the system, although they may also be chosen from a controlled vocabulary.

On SE - the same: tag is a () word or phrase that describes the topic of the question help you identify questions that are interesting or relevant to you.

tag origin and quality

Where from tags are originated and what are tag quality parametres?

problems and contradictions examples related with SE tags

Humanity is facing information overload. SE sites are created for collecting and sharing personal knowledge on questions or problem solving. But tag's descriptions are not matter of personal knowledge - it's just matter of /word-meaning/, i.e. vocabulary/dictionary, or taxonomy/ontology or, speaking in general, human lexic conceptual apparatus / framework. So why time has to be spent on fact's duplicating and sharing?

At the same time We are living at the linked data times. IMHO it's the biggest blunder having same tags with different descriptions in different SE sites unlinked. Tags (and so - descriptions) should be unified.

So I'm calling to unify all tags across SE sites as feature request. Maybe automatic linking to Wikipedia and/or some other decent dictionary would be reasonable.

solution examples

This is not a duplicate of Could the tagging system be enhanced to support tag synonyms?

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    Was unable to find rationale for separate tags accros SO sites. If you want to propose a feature, you need to provide a rational for implementing that feature. It's good that you checked that there wasn't already an explanation for why it's a bad idea, but that's not enough.
    – Servy
    Sep 15, 2017 at 19:00
  • With different SO sites you mean SO proper, SO.pt, SO.es, SO.jp and SO.ru, right?
    – rene
    Sep 15, 2017 at 19:18
  • Is this related: meta.stackexchange.com/questions/268885/… ?
    – rene
    Sep 15, 2017 at 19:19
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    How will that be helpful? There are Stack Exchange sites about programming, parenting, cooking, and music, just to name a few. How could they possibly use the same tags?
    – ale
    Sep 15, 2017 at 19:46
  • @Patrick I like that you used your hammer to dupe to the question I offered but I doubt it is a correct duplicate as that question asks about bringing the questions to sites with the same tags, while this question simply asks to bring uniformity in the tags. I think my answer there would fit here but still not a duplicate IMO.
    – rene
    Sep 15, 2017 at 19:55
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    Different disciplines often use the same words but meaning different things. Linking tags just because they have the same name doesn't make any sense, and would in fact worsen information overload.
    – user1228
    Sep 15, 2017 at 20:04
  • @rene absolute not, I'm not suggesting to link questions or tags itself across sites, just - tag lists and descriptions.
    – AndriuZ
    Sep 15, 2017 at 20:26
  • What is a tag list and its description?. Give some examples because I have no longer a clue what you want to happen.
    – rene
    Sep 15, 2017 at 20:42
  • @Won't You are talking about en.wikipedia.org/wiki/Wikipedia:Disambiguation ? - it's rather exception, than rule and has solutions so it's not the reason.
    – AndriuZ
    Sep 15, 2017 at 20:43
  • @rene sorry, my fault, different not SO but SE sites stackexchange.com/sites
    – AndriuZ
    Sep 15, 2017 at 20:47
  • The solution is to never do it in the first place.
    – user1228
    Sep 15, 2017 at 20:50
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    Ok, here is some real data about what you describe as a blunder: data.stackexchange.com/stackoverflow/query/723828. Please explain in your question how you plan to unify history across 88 sites, or performance on 71 sites or python on 56 sites. Your idea only holds in theory but not on how these tags are used by each community. Nothing is broken, nothing needs fixing.
    – rene
    Sep 15, 2017 at 22:01
  • @rene thanks for real data - I'll do my best in few days.
    – AndriuZ
    Sep 15, 2017 at 22:08
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    I elaborated on @Won't's point somewhat in my answer in the linked dupe (and have just written some more verbiage, in case you feel like reading it). I do think the dupe is a good one, if only because I would want to repeat my answer almost word-for-word... which is a fairly good description of what makes a good dupe, so hey. Sep 16, 2017 at 6:31

1 Answer 1


I don't like the idea for two reasons;

  • It don't take in account that it would scrap per-site tag statistic, like top answerer.

  • It don't take in account some tag, even if named the same, don't mean the same depending where it's used. Like [windows10] on superuser is related to the home usage, while the same on serverfault mean the usage in business.

  • I doubt that [windows10] on superuser is related to the home usage. It's impossible to describe anything with one tag. I'd say that in general S-A-O (subject-action-object) system should be used for tagging. Usage patterns
    – AndriuZ
    Sep 15, 2017 at 20:30

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