A lot of Christians have a habit of being judgmental. I have done it. I am sure at some point you have done it as well. We are like little children who learn the name for something and like to point it out every time they see it.
Some people seem to get a rush at pointing at someone and saying, 'sinner'.
The only problem is in doing this, a person would only be justified if they were pointing at everyone. We really need to start removing planks from our own eyes and stop dedicating our existence to removing splinters from the eyes of others. A big problem we seem to have is holding everyone else accountable to our personal interpretations of scripture. We all have our different interpretation of minor points of scripture, or else there wouldn't be over 25,000 different denominations and sects of Christianity. Some interpretations are grievously wrong, some are equally well supported interpretations of the texts we have.