I think we can agree that your experience was valid and changed your life. The emphasis here is on your life for good reason. Porn and masturbation, like any other escape mechanism, is exactly that. I suspect something underlying as the cause for your need to escape that much. The nofap community there helped you reinforce that change. It does not make the community entirely wholesome.
What I wonder is if you would have had the same results with changes in your life without specifically focussing on porn and masturbation. I have observed this a few times in other areas, where changes to routine and outlook was the actual source of the improvement and not the thing the improvement was attributed to.
Just a thought. It is always good to try and understand yourself. It takes nothing away from your achievement in turning your life around.