Robert Harvey's answer to What is the average number of tags per question on Stack Overflow and Stack Exchange as a whole? inspired me to go looking. On SO there are 24 questions with more than 5 tags spread out from 2008 to mid January 2011, see this data query.

I couldn't be bothered to check every site but went through about 10. The only other example I found is here, this question actually, which is from November 2011.

How is this possible? Is it still possible?

P.S. I'm not asking whether it'd be a good thing.

and I couldn't replicate it when creating this question.

  • It looks like those were created by some problem with the Edit Tags ability on SO. Weird.
    – user7116
    Mar 21, 2012 at 22:47
  • @sixlettervariables, I only noticed on 2 but you're right they all seem to have been edited to have 6, which I also can't replicate. Mar 21, 2012 at 22:51
  • I just tried it on here. It didn't work, but that might be because I was using synonyms so that there wouldn't be a bunch of useless tags.
    – ughoavgfhw
    Mar 21, 2012 at 22:54

1 Answer 1


We didn't constrain the number of tags in the beginning, so a few are from that wild time; the others are just bugs that crept in.

I'm retagging all of them now.

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