When I'm soloing, I very rarely take advantage of PvP in the environment. I'm usually too busy leveling or grinding for cash to start a land war. I've even been known to help out an ally in distress. About the only time I attack unprovoked in the environment is when there is a quest monster close by that I need to fight.
I'm not out to run anybody's night. I just remember how frustrated I used to get trying to level in Hillsbrad or Stranglethorn Vale. I've noticed that not everyone agrees with me. I'm cool with that, if I didn't want to run the risk of being ganked, I'd roll on a PvE server.