Porn is actually not addictive?

There is no "proof".

Porn addiction is arguably the diagnosis of our time. The idea has thrived in a time of anxiety about the proliferation of free, ever-intensifying adult material — and how it might be changing our relationships, our sex lives and our (zombie voice) braaains. The addiction concept shows up in Hollywood movies, celebrity cheating scandals — even news articles. But a new study suggests there is no evidence that it actually exists.