Honestly I don't know why anyone hasn't done this yet. If you go to his site (hansenvspredators.com), you can see he has "Submit a story" section here. Sadly the link goes 404 now, but when it was working it literally said "submit a story, I will personally review it and tell you if you have grounds for a case". If someone were to write up a letter with all the evidence, I think it would be very interesting to see Hansen's response to it.