In the explanation of Unsung Hero badge you can read:
Zero score accepted answers: more than 10 and 25% of total.
more than 10 mean? "11 or more" or "10 or more"?
Edit: Of course I do know what is the mathematical deffinition of this concept, but it looks strange for a limit to be supposedly based on number 11 instead of 10.
Regarding the bounty: I was expecting an official answer and could not get it. Hence, the bounty will be unawarded.