Has anybody here read the book "The Edge Effect" by Eric R. Braverman M.D. Before you look it up, let me reassure you it is not about holding in your orgasms or masturbating to the edge. It instead deals with different types of brain chemicals and how to balance them, mainly: Dopamine, Acetylcholine, GABA, and Serotonin. Full disclosure, I have not read the book, but have read plenty about it. The book talks about how people are going to be dominant in one of these brain chemicals and how it effects their personality. I don't know how accurate the author's science is but after reading a little bit of what I found online, I could see certain things that stood out.
One of the personality that I feel I fit perfectly is High Dopamine. My personality is exactly how he explains it when I'm balanced and when I'm low (I'm usually low because of the PMO.) The reason I bring this up is because this MAY explain the differences in the effects of the reboots for certain individuals. If you naturally have high dopamine but you have kept yourself chronically low then you reboot results might be more profound: more aggressive, confident, outgoing etc. Others who reboot may have "good results" but may not see any drastic changes in their personality.
I'm only putting this out there, not verifying what the book says. It makes me look at the reboot in a different way and how it's effects can be different.
On another, somewhat related, note. I was reading some interesting things over at the reddit/nofap board and a post caught my eye. The op asked a question about the relationship between ADHD and over masturbating/porn addiction and how a lot of the symptoms are similar. It struck me because I was diagnosed with ADD when I was child. I know exactly how old I was when I started masturbating chronically, 12. That is also when my grades started to fall. I have always "tested" well and did very will in college and in placement exams but my grades on doing homework or outside projects were usually not that good. I attributed it to ADD, but now I'm not so sure. Mind you, I'm not blaming things on either ADD or PMO but it made me think about the overlap in symptoms.