So they're like the Amish (living without modern conveniences)...
In all seriousness, there's definitely a "born-again" feeling running through both sites ("not that there's anything wrong with that!"). I don't consider porn/masturbation a moral issue, so I notice that it's often portrayed that way ("you'll go blind/to hell"...)
For people with addictive personalities, finding self-control can be an especially good thing, and refraining from sex in general certainly has a stimulant effect: it will ramp up your sex drive (for example "curing" ED... because, you know: blue balls), and it can have similar effects to extreme exercise. (Don't be surprised by the mood swings.) I don't know if I'd say that a self-imposed state of extreme sensitivity resulting from sexual sensory deprivation is any more natural or unnatural or especially useful than the other. In the short term, you may smell nicer to ladies (if you're a male) because you are giving off the right stuff. In the long term (from my own experiences) one has a tendency to act like a Neanderthal, even thinking about sex more than "usual" as a result of deprivation. I think people's leanings towards extreme "resolutions" say more about the cultural values that lead them to see just how long they can hold their breath (or not masturbate), as opposed to the effects of that restraint. Basically, I think you get these behaviors and experiments in self-control when young people can't think of any better way to get laid or stop procrastinating (compete in a world they are still new in). Sometimes people try getting an edge by edging, literally.