OP - I realise I have read the end of your thread and answered that, instead of actually answering your original question! So I've come back to do just that.
You say: Being a Christian is like having a 'get out of jail free card' in that you are taught God will forgive you anything. So you can do anything, as bad as you like, go and pray for forgiveness and move on, slate wiped clean, feeling great about yourself.
It may come across like that but it in't actually how it is supposed to be at all. Being a Christian makes you more accountable than if you're not a believer, as the bible says that the more you know, the more is expected of you and less excuse you have.
So it doesn't matter if you do wrong. As an atheist, if I do something wrong, it's always with me, it's always on my conscience, so that makes me always try to do the right thing. A conscience pricked by God is a very uncomfortable conscience indeed! The feelings of guilt are so healthy because they stop you being comfortable with your wrong-doing. Why else would we bother to stop ourselves? The trouble comes when people 'harden their hearts' and ignore the feelings of their consience, and do what they want anyway.
I didn't always think this way. It's the only way I can make any sense of something that happened to me at the hands of a couple of serious, committed Christians. One of them even works full time for a church. They did something terrible to me but have shown no remorse, no guilt, and made no attempt to make things right with me. I'm positive they prayed for guidance at the time and then forgiveness afterwards, and now all's good in their world, while I'm still dealing with the fall-out
I'm really sorry you've experienced this. I also have been wronged by people who claimed to be "serious committed christians" as you put it. Interestingly. the more I have looked away from their lives and the more I have looked at the bible, I have seen clearly how wrong they actually were. No wonder they were comfortable with their blissful ignorance! They were completely wrong and didn't have any conscience about it. Perhaps they are not actually true Christians, or perhaps the deep regret is yet to come (when they are bitten by how terribly wrong they were). Perhaps we will never know. But the bible is always warning about "wolves in sheep's clothing" and I suggest that it's because it's more common than you think.
Am I really wrong in interpreting Christianity in this way? In the nicest possible way, yes, but only because you are measuring true Christianity against some people who aren't demonstrating real christian values in their lives. Think of it this way... I am from a medical background and have recently had some of my colleagues whistle-blow on someone who endangered lives in their practice. If you were the family of these patients, you could understandably say that all hospital staff are incompetent. But we all know if they are professional and do their jobs correctly then they are absolutely competent and we are very grateful for access to them!
Isn't it true that it enables horrible behaviour by teaching you that if you do wrong, all you've got to do is pray for forgiveness afterwards, and you are ok, never mind the effect of what you did? Basically if God is your only judge, and forgiveness is guaranteed, it gives you permission to act like a right bastard as long as you say sorry to God afterwards? there's no personal responsibility for what you have done.
God doesn't teach that. Have you ever read Hebrews, for example? In there, we are shown how that God disciplines those who are His, like a parent must train a child. We don't allow our kids to get away with murder so to speak, and God is just the same.
There are two different types of forgiveness from God. One is where you admit to having done wrong and turn away from it (also known as repentance), and admit to the fact that you can't earn or buy your forgiveness for wrongdoing. It is a free gift from God because He paid the ultimate penalty for everyone's wrongdoing. That's why John 3 v 16 says "whosoever BELIEVES IN HIM" is forgiven. Not "whosoever was baby baptised, or whosoever goes to church, or whosoever is nice to the homeless. No, it;s talking about whosoever TRUSTS IN and RELIES UPON Him rather than their own "works".
And then there is the forgiveness that comes with consequences. This is not about the consequence of sin making us spending eternity away from God, it's about the consequence of discipline that God uses towards those He loves. His "Son's" so to speak. (And daughters obviously!).
And it's these consequences that mean no one gets away with A. Single. Thing. Even if it appears as though they have, you haven't seen their future yet.