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.
It's been years since it was released. If you haven't seen it at this point then saying *spoilers! * can only be seen as sarcastic.
You might wanna use a /s