What I meant is we shouldn't tell people they are going to hell. That isn't what the scripture says to judge.
I wanted to apologize for calling your posts wrong. I realized after I posted that it was rude, so I'm sorry I did that.
So, yes, there is effectively two ways we can judge. Basically we can do it out of contempt or out of discernment. If we discern that someone is doing something wrong, and out of concern we approach them about it, that's OK. I get the sense that's what your advocating to.
But, then again, you can pretty much do that to an atheist also.
What I'm not real comfortable with is this notion that it's OK to judge as long as they're Christians. However you define judgment, I think you'll agree, using some common sense about it is a good thing.