I earned the Tumbleweed badge for this SO question, which has since been removed.
Searching MSO, I found one somewhat-related question that indicates that I should be able to find out why the question was deleted, or at least whether it was a community or moderator decision to delete. However, the links on the deleted question's page only provide a link to a FAQ of possible reasons.
As the OP, how can I find out definitively why my question was removed (aside from finding the closing moderator)?
What can cause a badge to be lost/revoked/taken away after it is awarded?. You do not lose badges unless it is a tag badge.