Yes, indeed, this is a forum for victims, but also for people suffering from aflictions that are caused by causes unrelated to victimhood. The problem with NPD and ASPD is of course the emotionally somewhat shallow side of things and indeed the victimization. Which is why I think there should be a seperate space for this on this forum. But then again, there was on psychforums and they closed theirs. I don't really know why, but I suspect it is not terribly easy to find moderators willing to handle these type of forums in a reliable manner.
That being said, I don't see why this forum shouldn't be used to help victimizers, too. There ought to be some guidelines of course, such as not to purposfully troll others or such.