Why I'm Asking
Based on this question, it looks like questions are converted to community wikis when 5 different people edit the post. However, when you retag a question, it also shows as having been edited by the tagger.
What I'm Asking
It remains unclear to me whether retagging increments the edit count towards community wiki status. Does a retag count as an edit for this purpose?
Related Feature Request
If retagging counts as an edit, it probably shouldn't. Miscategorizations, or categorizations that change over time as tags (and tag usage) evolve, are not the same thing as active community maintenance of a living document.
If they are treated separately, it might be useful if retagging was shown as retagged rather than edited on the question. This would avoid confusion, and make the last action more obvious to people reading the question.