Yeah, it means you're trolling. You're basically picking a fight. So's the other guy. Doesn't make it right for you to do.
But yes, trolling is being inflammatory. Some people go out to do it "for the lulz", other people get worked up and fall into the trap of losing their tempers. If someone's driving, and they lose their temper and ram another car, "but it was road rage!" won't get them excused.
Call it a learning experience -- the lesson being: Keep. Your. Temper. wink