You can do whatever you want with that information, and here’s what you need to understand. There hasn’t been a study on every single issue with masturbation and stuttering. They are most likely going to happen in the future, but do you really want to wait until you’re 60 years old to find out that there’s actually a link with stuttering and masturbation? There is already sufficient data to already prove that there is a possible link, you act on that information right now, you can make changes in your life today while you’re young and your brain is malleable. I’ve eliminated porn from my life for about six months now and from my personal experience, it has helped with my stuttering, but I’m sharing anecdotal evidence.