Hope you don't mind. I was diagnosed with bipolar II not long ago. I didn't notice anything but people around me did. Some are amazing and supportive while others raise stigma and judge.
They may not even know me well they just "heard" bipolar people are: dangerous, weird, crazy, hurtful. These are all stigmas. This also applies to people diagnosed with schizophrenia or any mental illness.
We are not to be feared or talked about. We're all human. society has just placed this label on mental illness that's unfair.
When I hurt someone -I admit I have- I have no idea I did unless they tell me. I have some people in my family who don't like to communicate so I learn nothing from them. Speak up! We won't bite ;]
If someone needs treatment and won't get it, especially if they've been diagnosed by a professional, don't fight or judge. Sit down and tell them how much you care and that you will support them through it.
Bipolar disorder, or any disorder, can hurt a lot. Especially when the person is so misunderstood and pushed away.
IMO....I agree that with meds the condition might be controlled however there are situations in which the person does nothing and their situation becomes worse. One has to take into consideration the behavior being displayed and must adjust to prevent negative situations from arising. I feel that some of this illness can be controlled by recognition and some of it controlled with meds.