[BBXX]

It is OK to use in the context Ali used it in, to refer to someone who she knows is on the sexuality spectrum but doesn't adhere to a gay/bi label.

I think GoldGlitters point is that if you don't know someone, it's not safe to use the word because for some the only time they hear that said to them is during an insult. I wouldn't care even though I would never call myself Queer but I would find it an odd choice of word for someone to use to describe me without knowing if I referred to myself as that.