ALSO, all the advice about forgiveness is generally referring to somebody forgiving a PERSON who has wronged them in their life.
However, what if the entity/religion/organization or whatever else you may call it is still hurting people and attracting new ones?
It might be easier for somebody (mentally) to conceive of forgiving a person who has wronged them knowing that this person has a limited life and will die at some point. However, the story is a little different when you are referring to a faceless ever-changing religion/organization/whatever that has a very long life span and still going strong.
I think this is why many ex-JWs have an anger that doesn't go away. In many instances, the person(s) within this entity have passed away and there is no closure for them.
The issue of "forgiveness" is complicated when you are referring to a (still active) large entity/institution rather than a person.