I think masturbation is not good for hair no.
You have to see that sex is meant to make children. Not to use as an instrument of endless pleasure. Of course in the most animalistic of the human psyche pleasure would mean it is behaviour that is promoted. And in a sense "pleasure" is not evil - it is good for humans otherwise it would not give pleasure.
But I think if you have a child your brain also changes as the father. But because people have sex and there is no child born from the sex they have (or masturbation) they are never satisfied.
Useless pleasure is a dead end and will make you weak. Just like white sugar. It does not fulfil the human nature and thus you will do it until eternity until your body gives out.
This is why homosexual sex is garbage. It is the same as masturbation. Also sterile sex is not good because this is also masturbation. It has no goal. It is just wasting energy.
But now people have OCD tendencies with masturbation and they masturbate 4-5 times a day or even more. That's fucking insane haha. I know because I did when I was a teen.
@BC2018 What you describe after orgasm is POIS. And excessive masturbation can cause POIS by imbalance of zinc/copper/manganese from what I read. And I think a lot of guys with POIS also have hair loss. Or at least a lot of people with MPB have POIS.
Also a lot of guys on finasteride develop POIS.
Helen is actually expert on this lol.
I also had bad POIS on finasteride but even before using finasteride. I would only start feeling good after 4-5 days of no ejaculation (NoFap). Before that I would feel brainfoggy, depressed and socially anxious. That was pre-fin.
So it is not just genetically. Of course if you were born weak you are more likely to develop this crap. But there are ways to fix it obviously. But for most people they will stop watching porn and masturbation by doing NoFap but never fix the underlying imbalance they created.
This is what I did. I stopped porn/masturbation and felt better but my hairloss started. I thought it was from bad diet but I also had a past of excessive masturbation to pornography in my teenage years. NoFap fixed a lot but it took a long time, probably a year or so on it. And even then I still had POIS symptoms plus hairloss. And thus never fixed the imbalance I created from all the masturbation I did for years. Plus the wrong diet (little zinc).