A Course in Miracles suggests that with no past we leave judgment behind. I agree, how frequently I am faced with a situation that I add it up based on what I know and come up with a conclusion, long before anything has happened.
I've found it is very powerful to leave my past behind and sense someone's enery, without judgment, to determine if I should engage or avoid that person. It seems sensible that if I use my past as my guide I will not only manifest a dervative of it in the future, I'm also more likely to judge someone.
One other thing, whenever I write what I do, it's my reflection of my truth. I stray, it's part of being human. So I will judge from time to time, I'm just grateful that when I do I'm not hard on myself.