Sure i got your points. But to be honest if you take a deeper look the rewards are not fair and based on quality. It has influence, but it is not a major factor. Also i had to do a bit more than just to generate an image. Giving hints to all participants. Choosing a city which was never used yet etc. Of course it is not comparable with a whole Story Telling post, but it still takes more time than it pays out in hive :).
As i already wrote before i will refrain from doing anything like this further. But i am not the problem if at all a symptom.