Judge Not....

It seems to me that some of non-Christians' (or non-practicing Christians') favorite Bible verses are those about not judging--take the plank out of your own eye etc. In other words, they like to say what amounts to "How dare you say that what I'm doing is wrong". Is that what Jesus really meant when He said not to judge? I don't think so. He says time and again that we are to avoid sin, and in order to avoid sin, you have to be able to name it, to identify it. The fact that it makes you feel good, the fact that everyone does it, the fact that it would cause you pain to avoid it; none of these change a sinful action into a non-sinful one--nor does the fact that I"ve never been in a position to want to commit that sin.