The trouble is with reporting the real nasty Trolls, we as a community don't actually know if said player has been penalised, temporarily banned or even had a warning shot fired across his bows, its all very secretive. I appreciate there may be issues with naming and shaming but why not publish a list every month giving total number of players penalised for real abuse, not just saltiness.
This would re-assure us that action is being taken and it would also perhaps serve as a warning to those that do get nasty.