It's been several days now - should I have earned a Guru badge for: Co-worker renamed all of my queries ? It's not the answer with the highest vote count, but I didn't see that as a requirement.
Yep you should have the badge, but due to a bug in that particular case, it wasn't being granted. You cannot get guru for your own answer (since that easily bypasses the accepted part of the requirement).
In the SQL there was a check for this:
And accepted.OwnerUserId <> p.OwnerUserId
...and in SQL Server, when
null (the owner of the question was deleted), well...that check of course doesn't work so well.
It's been properly
IsNull()'d in the next build, once that goes out we'll properly grant the Guru badges in the deleted-owner case.