the point where it sucks is actually if you try to change that life style choice. normally, i'd find the act of smoking quite relaxing, yet trying to change that, i have being dealing with the resulting addiction for months on and off and i still loose the occasional battles, and you know who i have to blame? me.
now, you might say that i am a victim of 18 year old me, who hasn't being around for nearly a decade, so why is it fair that current me suffers? well, that's the thing about actions, they have consequences, sometime good, sometimes bad, sometimes completely unknown to you at the time, they still are their and your responsibility. i might hate an apartment but signed a year contract. i might buy more then i can afford on my credit card and have to pay back the debt. even the content of the above conversation, exposing myself to a vulnerable position to abuse resulting from multi layered commitments i made to a women who i did not do a good job of getting to know well enough before, even when the consequences where unthinkable to me at the time, is my responsibility.
like most addictions, online porn has certain disadvantages and advantages - and often most of those scale on long term vs. short term. but not all, because as described by many above, many might see decreasing their sense of urgency in hooking up as a positive trade off worthy of it, while others might decide to stop with it and see what happens (google tedtalk - the great porn experiment).