I created a tag wiki for a tag that was missing one. I also added a small bit of content to an existing tag. I did not get the badge. I saw a post stating that creating a wiki was now included in the badge calculation. Regardless I have also edited it and it seems to be approved. Any new news on this?
Confirmed, a few weeks ago I refactored the Posts table to allow for a whole bunch of new PostTypeIds.
TagWiki and TagWikiExcerpt are now PostTypeId 5 and 4. The badge checks for PostTypeId 3.
I am committing a fix to the badge today.
This looks like a "me too" answer but I can confirm that the tag editor badge appears to be broken. I recently (three or four days ago) edited my first tag ("cryptography") both on stackoverflow and security.stackexchange. On SO, I do not have trusted user privileges yet, so this went through peer approval, who did approve (I got the +2 rep changes); on SE I have the trusted user privileges, so no peer approval. Right now, no tag editor badge for me, neither on SO or security.SE.