I think it's more the psychology of the nofap group themselves that's hurtful. I've seen many/most discussions that are fine, but others are just wildly toxic with a cult-like "discipline".
You're either with us or against us.
Us vs. the system/females/people in power.
You're better than others. Or, if you trip up, you're garbage.
There's no in-between and no room for mistakes.
That's not good for you in the long run and it'll hurt more than it helps.
Technologic.