brynn - maybe it depends on what we do with that label of 'addictive personality'? I can definitely see it being used as an excuse to continue destructive behaviour, so I get what you're saying. But I could also see it helpful for some in that it identifies a pattern of behaviour that can then be worked on.
I'm a little more dramatic in my diagnosis (and less scientific), and refer to it as my 'soul sickness' a la AA. But I definitely don't want to stay this way.