Rules, freedom, both common themes here. An element of Christianity is the freedom of choice that we have, and the rules or guidelines are the governing of it. Saying Christianity isn't about rules or freedom is a bit like saying a government isn't about laws and management.
I disagree with the statement in the original post. By saying we are such and such a denominatioin, then we are saying that we are so as people. As people, we are fundamentally flawed - we can never be perfect, we can never follow every rule that is set down, and therefore, as we say that we are people of a religion, we are not wrong. I am a practising Catholic, I attend mass every weekend, I take part in church events, I am now a eucharisitc minister, I am an Altar server and I read the readings. However, just because I practice so it does not necessarily mean that I am a follower of Catholicism. Being a Catholic, or any other Christian denomination, means caring for, not just the physical church and going through the motions, but taking care of the church that is the people, and we are all God's people, being a good moral person and standing up for good and so on are more important, and if you do these then you can still profess yourself a Christian, I believe, for you are as such and just because you do not go to church or something, it does not mean that you cannot profess yourself as a Christian. There is a point in that saying you are such and such yet not doing a thing about it makes you not such and such as you have professed, I agree to an extent there. The point is, many believers/professors of a faith and so on do try to overcome the barriers that present situations that would otherwise have caused a compromise, and whilst we cannot always succeed, (as I said, our own nature is often the cuase of failure,) those who try to act as their religion leads, (not dictates,) can fairly represent themsleves as the Church that they believe in, as God's people on earth.
That is why I disagree, Gladiator. I am glad of the way in which you present your argument and amicably ask others' opinions, not just tell them that they are wrong because you say so. 
"The true office of a friend is to side with you when you are wrong; the world will side with you when you are right."
"It is not just a friend's help that helps us, but the knowledge that they will unconditionally do so."