You can't put people into boxes, saying that all borderlines are like this. I have met many quality people on this forum who have borderline. They haven't treated me like ****, or seemed especially self-centered,or devalued me or others.

It's not a black-and-white issue. There is a tremendous stigma surrounding BPD because people talk about borderlines the way that you just did.

There aren't clear borderlines (haha, pun) between bipolar and BPD. Some people with bipolar have rapidly changing moods. Some people with BPD experience mood swings for no reason. Some people have both conditions. Some borderlines are misdiagnosed as bipolar, while some of us bipolar bears are misdiagnosed as borderline.

In textbooks, yes, it is easy to tell someone with BPD apart from someone with bipolar. In reality...not so much. And borderlines aren't nearly as horrible as textbooks make them out to be. Their "bad" behavior is no more under their control than our "bad" behavior; i.e. some people with BPD can't control their overreaction to perceived abandonment any better than some bipolar people can control their overspending or hypersexuality during mania.

And for the record, no, I've never been diagnosed with BPD. I take this issue personally, however, because I know what it is like to be discriminated against and seen as a "monster". I know how much that hurts. No one deserves that.