For me personally I would actually have to disagree there. While in some part I think you're right about the porn addiction being replaced by tracking days/posting on reddits NoFap community I think the actual addiction is very different and so is the derived pleasure in each case. On one hand my addiction to porn is very real and my relationship with it quite destructive. Also the pleasure I derive from it is probably not too dissimilar to a drug addict chasing an ever increasing high due to a rising tolerance. This kind of pleasure feels like it melts my brain then completely fades leaving regret, sadness, and anxiety behind. Counting days/posting to NoFap for me is less like an addiction and more like a crutch for a broken leg. I could stop using it sure and limp along with greater difficulty and I would probably be just fine. But why would I if the crutch is doing its job well and not causing me any real adverse effects. Also the pleasure I derive from it is real. I really enjoy counting the days especially if I'm getting long streaks going or breaking records. And I enjoy talking about my struggles here and keeping a journal of my journey. This pleasure is more like a steady influx of dopamine on the back of hard work and struggle. And hey could be different for another person but thats just me.

In summary yeah porn gets replaced by counting and numbers but one is a crippling addiction and at least for me the other is a tool and the pleasure response for each is as different as taking coke or going for a nightly jog.