Being sorta new I have yet to do a 'screw you' to the Elves. I do dislike the elves, but I have never been in a decent military position capable of handling a war (I know they use wood swords, but the archers and concept of war in this game scare me.) and the usual goblin crap, or had the right situation for environmental murder to them.
Back when I just started playing I never understood the hatred towards elves. I didn't really care about their anti-wood snobbiness (Mainly because I only make and sell stone and metal crap.). I started disliking them when I realized how much crap their caravans were. That's all it's at right now, disliking. However, as soon as Elves can go to war over the amount of trees I cut down, it will be come utter HATE.