If you know of cheating and have evidence, of course you should report it or shut your mouth. Problem is that too many average fans have doubts about the sport, but are not enough of "insiders" to have real proof. Some of these doubts may be well founded and at other times they are based on ignorance of the sport. I know many horsemen have doubts about other horsemen but have no proof either. I'm not merntioning any names, but I'd guess a high % of horsemen, (owners, trainers, drivers) have doubts about the 4 letter last name guy and a few other high profile horsemen as well. I still think that if you are really cheating all the time, sooner or later you will be nailed.