Someone awarded a bounty to me on this answer and then deleted their account. Normally, I would still keep the bounty reputation, and it would be attributed to the Community user. However, in this case, I seem to have lost the bounty reputation.
This seems to be a bug, because while my answer shows the "+200" mark, the answer's revision history and timeline do not show any evidence of a bounty having been awarded. It seems as though the bounty vote was deleted somehow. Interestingly, the question's revision history and timeline both show a bounty owned by Community and awarded to me.