Roaming bird, interesting! Thanks for sharing.

Wiretwister, I get that a lot: I ramble steadily on and for some inexplicable reason people suspect that must very deep and intelligent. It could very well not be, it's just hard to tell. My professors used to treat my ramblings similarly. It still works: often in the scientific literature people just don't understand but still see it as very enlightening or clever and make references to it.

Edit:
It's sometimes like a smoke pot 24/7. I am sure you can at least somewhat relate.

Ocean, yes often but not always. But it is not as remarkable as one might think, as borderline really means not much more than being at the borderline of psychoticism and normalcy. It can mean you are at either end of the borderline, I find, so that you may suffer later in life (assuming your personality is formed before full pathogenesis/onset) from either unipolar or bipolar (manic-)depression. It's just that such a personality predisposes you to become periodically manic and/or depressed, but maybe wards off the more severe disorder (the person involved, at least) of schizophrenia.
It would mean considerable problems/prodromes in one's childhood: not everyone has does in noticeable severity (or maybe in some rare cases up to maybe one- or two-thirds of cases, not at all).

Approximately two-thirds of people with BP have a history of substance abuse or severe trauma in childhood or adolescence. Some of them are, I think, less likely to have BPD traits, a borderline personality, but especially in the substance abuse group it could (partly) have been caused by BPD.