Thanks Buzzybee, but those figures do, perhaps, lead to statistical and probability anomolies. The Genius threads, on average, receive between 30 and 60 posts, then add to that the unknown number of those that read the thread but don't post.
Given these numbers and assuming the number of entrants is still between 100 and 200, I would expect that users of this Forum should be winning with some regularity - that does not seem to be the case?