Words have power. I know this because I’m a writer and I’m perfectly capable of angering, saddening or frightening people with my words. If words were not powerful, bookshelves would be empty.
And bipolar is a powerful word when used in the context of a mental disorder. Depending on who hears this word, it can conjure up images of violence, danger, suicide, crime, fear, and many other unsavory things. It’s really no wonder that people don’t want to “be bipolar”.