until there is no agreement. In other words, rules, rights, codes of behavior are all subjective and dependent upon each individuals interpetation. And even if a few individuals agree on some basic rights, there is no mechanism to protect or enforce rights. Everyone is free to make up their own rules whenever they want to. There is no such thing as standard contract because standardization is antithetical to anarchism. None of these things would be a problem in a perfect world, but take a look around, we've got a ways to go before we achieve perfection.
And you say anarchy "doesn't mean without representative consensual government". So you're saying a stateless society has a government, but it's different because it's consensual? The Declaration of Independence says the just powers of government are "derived from the consent of the governed". Sounds a lot like what you're describing but the Declaration is not describing a stateless society.
And regarding no rulers. Do parents who are anarchists allow their children to eat what they want, when they want, not do school work, fight with siblings, etc., or do they make rules and enforce them, like a ruler?
http://www.dailypaul.com/277342 (Rand Paul: One person can make a difference)
http://www.StandUpForYourRights.me/?p=1264 (Fast and Furious hearing)