I think I may have found a bug/oversight when deleting questions and adjusting reputation. I recently answered a question when I was near the reputation cap for the day. As a result I only received 30 rep plus 15 for being the accepted answer.
However, when the question was deleted a week or so later, I lost 185 rep. 170 for the 17 upvotes, 15 for the accepted answer.
The problem here is obvious, reputation was removed that was never received. I'm assuming that the reputation cap was not considered when developing this functionality.