But see, what you preach is a double minded message (That appears to look good on the outside at first glance, but it is truly wicked on the inside after close examination). On one hand, you are saying your message will lead people into righteousness. Yet on the other hand you are saying that no sin will ever be accounted to your record (Thereby giving people the idea that they will abide in sin (with the thinking they are saved - whether it be for a long time or a short time - or forever. For they could abide in unrepentant serious sins like murder, rape, hate, adultery, lust, and drunkenness, etc. all while thinking they can then enter thru the gates of Heaven). This is what a lot of people in the world sort of think. They think God will just let them into Heaven, because they are not that bad of person. God just understands that they lust after women and God just understands that they get drunk all the time. Hey, everybody does it. So it must be okay. Right? Wrong. Evil is evil and it makes you an evil person regardless of what you claim to believe. I mean, seriously do you honestly think a crazy Bible quoting axe murderer (Who believes Jesus is his Savior) is saved? I don't think so. Jesus said you will know false prophets by their FRUIT (i.e. deeds).
There are many who have come out of OSAS thinking it was leading them into sin. For it does not encourage one to think there is any real consequence to sin that will truly matter to them to stop sinning. Chastening? Well, that only works if you truly want to please God. But most will just think that everyone just suffers anyways and they will continue to sin and think they are saved.
Now, you may say there are testimonies of people who came out of legalism to prove your case. But this is not what I teach. I do not teach that a person has to earn their salvation or that it is their own work that saves them. That's also a false gospel. God does the work in the believer. So I cannot claim that I am doing the work of my own power. Jesus works in me to do all good in this life. For Jesus said without Him, we can do nothing. And I believe that. So it has nothing to do with Legalism, but it has to do with abiding in Jesus Christ (Who is the source of a person's salvation). No Jesus = No life (1 John 5:12). If one has Jesus, then good fruit and not bad fruit will be evident in their life. For even Paul said know not your own selves and prove that Christ is in you unless you be reprobate. How can you prove that Christ is in you? Try reading 1 John 2:3-4 and then read Titus 1:16 and then Hebrews 12:14.
Also, as for your comment about undertanding: Try reading 1 Timothy 6:3-4 closely in prayer sometime.