Expatriate actually hit on a point that is quite true.
In many forums, there is usually a consensus of a set belief that prevails. I know from experience that in another forum, the consensus is quite anti-bush and subsequently in some ways American-bashing. That's just the way it is I suppose. Everyone is very reactive in their beliefs and aren't very open-minded. Which is fair as everyone is entitled to their own opinion.
But I find the best way to post is never to attack. You lose much credibility and you hurt others' opinion of themselves and then it becomes a match of name-calling. To avoid being called a Troll, be persuasive, informative, and above all, humble and respectful. No one is out to get you Expatriate. But I will venture to say you could have offended someone through an unintended passionate reply. Just have to be careful dude.