There was one time I saw a tag that was used for only one question, but just after the question was created the tag got edited out. I think (not totally sure) that it had a tag wiki. When I clicked on the tag shown in the revision history, though, I could not find the tag wiki, which makes me wonder if the tag actually still existed.

My question is, does a tag still exist when it is are edited out of the only question that uses it? Or does it not get removed until 6 months after it was created?


The tag will stop to exist (after being removed from the last question) when a daily script runs, so much faster than the six month for tags with one question.

This answer seems to suggest some information about the tag is being kept, but it's doubtful. The tag wiki you mention will be orphaned and not reinstated when the tag is created again.

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