I received the privelege to suggest tag synonyms today, so I thought I'd have a poke around and see how to use it. When suggesting a synonym I got this mysterious dialog:

enter image description here

What does the error message mean in this context? My best guess is there was a false positive, with some sort of detection of the "3d" as being a version number, but even that seems a bit out of whack.


We are over careful with version numbers.

In the past people synonymized all sorts of wrong synonyms like -> and so on.

It is common to mistake a tag synonym with a tag hierarchy. The intention with synonyms is to catch cases where two tags are exactly the same thing like -> . We use the synonyms to enforce consistency.

When analysing the mistakes people made I discovered that if a number is involved, in any way, on either side of a synonym a moderator should get involved.

Take your specific case:

encompasses see: http://matplotlib.sourceforge.net/mpl_toolkits/mplot3d/index.html

However, contains no 2d functions that are contained in the parent library

The synonym you are trying to suggest is, in fact, wrong. The system is doing the right thing here.

  • Doing the right thing, for the wrong reason? – wim Oct 21 '11 at 5:28
  • yeah exactly, do you have a better idea for the error message? – waffles Oct 21 '11 at 7:40
  • I don't know, maybe "Tag synonyms containing numbers can only be created by moderators"? – wim Oct 21 '11 at 8:08

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