This is from the top post at the official forums on the latest RT question:
That denial of service phrase is the slogan for EQN. Want to be able to kill other players? Sorry, denial of service for those that don't. Want to require specific classes to complete content? Sorry, denial of service for anyone that didn't choose that class. Want to have a death penalty? Sorry, denial of service for everyone that doesn't want to die. Want raid mobs that take skill to defeat? Sorry, denial of service for the unskilled players. And on, and on, and on...Too much contested content could probably be construed as a Denial of Service for many players.