The solution could possibly be talking about it.

This forum serves a vast audience. It's not only the Leaving Board. We have members that are in active relationships, whether it's a spouse, child or other family member. Addressing the us vs. them is important because we want this to be a welcoming place for
all our members.
On Leaving we do tend have members come here at first hurt and the grief is raw. We also tend to have more bashing here which we try to balance. There's a big difference between being heard and communicating those feelings and co-ruminating & bashing - which tends to make for a negative environment. From our guidelines it's called centering - "one of the important roles we all have is to help “center” others, not pile on or inflame emotional unrest".
From experience the staff has noticed once that negativity takes root it tends to alienate other members, the majority of threads can become bashing threads and little healing gets done. It's a great place to get stuck - when it's really a phase we try to move through if we want to heal. Like the phase of Grief:
PERSPECTIVES: The Five Stages of Grieving a Relationship LossOne of guidelines addresses the general blanket statements about people with BPD. Many leaving members are coming here on the heels of abuse or other trauma and that anger at the abuser is understandable. One of the ways to address it keep the statements and thoughts personally specific to the ex because not all people with BPD are the same. There's the clinical criteria that defines the disorder - it can present in a variety of ways depending on the individual and environment.
None of us are therapists here. Most of the material is from clinicians and professionals. We do try to foster a healing environment and we are governed by Honcode and our guidelines.