I edited a question in the re-open queue earlier, and removed the Marvel tag (it was tagged marvel marvel-cinematic-universe spider-man avengers-infinity-war) because it seemed redundant. However, I was directed in a comment (Is Maw Peter's First Kill?) that I should have read the tag wiki first, and seen that it is a required tag for any MCU or Marvel Comics question.

To me, Marvel is implied in their own cinematic universe, and their comics. Why are we tagging things this way?

  • 2
    Seems dupey to me...
    – Valorum
    May 31, 2018 at 20:26
  • Perhaps, but it would mean we shouldn't have tagged the question in my question with marvel. The upper limit of that hierarchy would be the MCU, which is separate from the comics, and the X-Men, and Fantastic Four, and.... May 31, 2018 at 20:42
  • Or, perhaps we tag all the comics and MCU's with marvel, I am starting to see how that might make sense, but then based on the wiki we'd have to pull the marvel tag from all non-comics and non-MCU questions. May 31, 2018 at 20:49

1 Answer 1


It is redundant, but Stack Exchanges tagging system requires us to make some compromises, and this stack chose redundant tags.

The issue is that our content naturally falls into a hierarchical tagging model. A large portion of our works can be tagged as individual works, which are part of a series, which may be part of a larger universe, and in extreme cases like Marvel, part of a massive body of interrelated works, e.g.:

Iron Man 3 >> the Iron Man series >> The MCU >> Marvel

Stack Exchange tags can't naturally represent this hierarchy. Thus, in order to allow our users flexibility in using tags to search, filter, build custom RSS feeds, ignore, highlight, etc. at any level of this hierarchy, we've settled on just using redundant tags. That is, tag things with all levels of the tag chain that are relevant.

  • You seem to be against this use of redundant tags, yet iirc it was you who originally suggested it
    – Edlothiad
    Jun 1, 2018 at 5:12
  • 2
    because the alternatives are all worse.
    – KutuluMike
    Jun 1, 2018 at 10:20
  • Thanks for the explanation, very helpful :) Jun 1, 2018 at 15:31

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