I want to thank all who responded to my query. There was many good opinions regarding cache fraud. I decided to write to the person and ask them about this seemingly impossible task. He sent me a congradulations for finding his fraud and admitted he never went to any cache, but was just playing a game. He also told me I should "lighten up" about the whole thing. I have also decided that as I visit any caches this person has logged, I will inform the owner when I log it, and let them decide what, if anything, they wish to do.