I looked under "bountied" questions on Stack Overflow on 25-Aug and found How should I create an algorithm for the centroid of any System.Windows.Media.Geometry object? offering 100 reputation points for an answer.
I offered an answer and went back and forth with updates to clarify and offer additional information.
After providing the answer, receiving a comment from the original poster that "This looks like an awesome solution, and it's basically the road I want to take", I find that the original offer of 100 reputation points is no longer in evidence. I got an up vote for the answer, but it hasn't been accepted.
Is it kosher to offer reputation points and then rescind the offer? Or is the "bountied" question working in a way that I've failed to grok yet?
I probably would have answered anyway, because I'm interested in the problem, but it seems misleading.