There's a big difference between the physical act of masturbation, which is probably harmless and good for you in moderate amounts, and the mental act of watching porn, which seems to be what people are advocating refraining from.
Oh. I didn't notice the difference, because I automatically assumed those two acts to be connected.
So, would that mean that masturbation without watching porn is healthy and harmless, but masturbation with watching porn is harmful? Sounds like an easy setup for a scientific experiment.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.