All concepts are open to interpretation. Unless you want to appeal to some kind of Platonic realm.
I agree with qualification, but I know you will interpret this as backsliding and it is only a minor qualification. So I'll agree for the sake of argument. Doesn't your point, combined with my point simply show that all high principles - such as the anarchist love of liberty - are just means of controling people? The only thing wrong with my post was that I suggested that some high principles are not a means of controling people. If you are right then I have understated my argument. You have just pointed out that my argument is stronger than I make it out to be.