I think we're one of the more peaceful types, but maybe not -the- most peaceful. Maybe ISFPs are?
But as for the conflict thing, I really don't like it. I avoid it like the plague. I always joke that I'm an expert conflict-avoider, i.e., if I feel the least bit of tension I either sneak off or deflect it. I never really associated this with me being an ISTP, but because I'm a middle child of a very chaotic family. I think this because I wasn't always like this (Used to be a stubborn ass), but developed this way over time, especially during family issues.
It really works out for me most of the time. But every once in a while I have to step in and make a point that just because I'm easy-going doesn't mean I'll let anything go. Kinda like how Charles Isaac mentioned, pushing an ISTP too far is just plain stupid, imo. (i.e., my claws -will- come out).