You may find yourself in court if you write stories about suicides based on forum hearsay.
I understand your intent and I can feel your anger, we all shared it at one time.
Trust me.... please... just write YOUR story. That will suffice for you and your conscience.
As for outing people that have chosen to be a bit more human and speak to you when they shouldn’t..... maybe show them the same humanity back and keep them out of it too.
You can still help a lot of people and it can still be therapeutic for you. I also agree that we shouldn’t live by their rules anymore.... however they are living in an emotional/spiritual/psychological concentration camp and announcing names for the ‘guards’ to hear who has broken the rules, especially in showing you a small kindness, will not bring anything but more suffering. This time however you are helping police the sheep.
All the best with your book.