In the Relationship section there's a subforum for Partners With Personality Disorders, where partners or former partners who've been adversely affected by a person with a PD could vent there. This is located here:

http://forums.psychcentral.com/forumdisplay.php?f=132

The other forum ideally would be for members who have a PD and wants support or who wants to learn more about it. This same conflict has happened in the antisocial forum and psychopath forum.