> Unfortunately I think you would need to lock yourself in a room to achieve the kind of solution you're trying to get at.
While addictions can be so extreme as you described, this doesn't describe me, and I don't think (correct me if I am wrong) it is very typical of someone who would consider themselves addicted to pornography. Typically before my session, I would be in a worse than normal mood, or just really wanting to release. If my computer suddenly locked up for an hour, I would likely "sober up" and go do something else.
> You need to replace the stimuli you're currently using with other stimuli of some kind. Just flat-out removing it absolutely stupid and not going to work.
I agree that is very hard to remove a pleasure source all at once, and a plausible route would be to go incrementally. Reading the other comments, I would agree that spending more time with people in general (not just romantically) would be a healthy alternative.