Couldn't agree more. It sums up the difference, to my mind, between a fan and a supporter. A fan (aka "fanatic") just acts on their primitive emotional responses to a situation, whereas a supporter does what he/she feels is best for the team they support. A fan responds to a defeat by looking for scapegoats and who to blame and typically picks on the most vulnerable. A supporter thinks about what they might do to help the team convert that loss into a future gain (however trivial their support might be). This often involves supporting those whom the fan most readily attacks. Sometimes, it just means saying nothing...
To my mind, Michael Cooper is the best goalie ever to come through the ranks at Home Park and I'm delighted that he is playing for my team rather than the opposition. Think, he could have been Exeter's. Why some feel the need to question his place in the team, totally baffles me.