Judgement is a tough subject. We are told not to judge according to appearance, but with righteous judgment. (John 7)
There is certainly a difference between judgment unto condemnation and judgment unto salvation. One is borne of the flesh, and the other of love and the Spirit. And so we should remember,
"My brethren, if any among you strays from the truth and one turns him back, let him know that he who turns a sinner from the error of his way will save his soul from death and will cover a multitude of sins." (James 5)