Really? In my time playing the game since 1.0 the most aggressive, toxic players are the ones not using a parser who think the group failures are someone else's fault. The example that sticks out in my mind most is a run with a brd and machinist in Fractal Continuum. The Mch and Brd were both doing less damage than the tank in the party, but the only person complaining about the dps was the Mch. He kept yelling at the Brd for being bad and letting his dots drop, all while the yelling mch kept dying every 30 seconds to avoidable aoes.