We all agreed to moderated forums when we signed up.
The guidelines are set to what will be moderated, and there is a wide interpretation that can be applied to those guidelines.
It's a very simple concept, that so many seem to not quite grasp. Like a clause in an insurance contract, you read that document, but so many of us neglect the ones attached to sites and games like this one, simply clicking "agree. agree. agree. Now let me play!"
So often people cry foul on the abuse of their "rights" when they are neglecting their manners or etiquette, or exercising a lack of maturity.
Food for thought.