People can disagree. It is how you disagree that is important.
I would drop this, it can do no good but stir flames. One of the things I like about this site is the notable lack of flames, and respect given to people who are just starting out in the hobby.
John is missed. I hope he comes back when the ban is lifted. I've been told it is temporary. He may not, his choice. You can chat with him at ElectroTech.