Like some have been saying: some women simply view the word as an appropriate term to refer to themselves and are simply not offended by it. Also, it could be due to the fact that when a person uses a word that is used to be offensive to themselves by other people, they are indicating that they have the same power over the word that those who would normally do the offending do. But if you are offended by it, then people should not use it to describe you if you don’t like it. It’s that simple.
My theorem on this matter, one that often results in me getting tarred and feathered is this: No word is always offensive. No word is permanently offensive. Some are more offensive than others, but some simply change how offensive they are. It depends on the context of how its used. Sometimes the word may be offensive under certain circumstances and in others it may not be offensive. I never understand why people who argue against that are so into the whole “black and white” aspect of a word’s power…it’s entirely gray.
People should be trying to lessen the power of offensive terms rather than preserve their power. I am against telling someone that they should be offended by something. No one should feel like have to be offended by anything.