You would be surprised. I remember watching a video some years back about a woman food vendor who would call everyone "honey" when taking their order. Someone complained that they were offended and she lost her job. Do you think that's something legitimately offensive?Seriously; how hard can it be to be considerate of someone else's feelings? I understand that sometimes, it is necessary to be offensive. In such cases, it serves a very important purpose. But honestly; think about other people and how things like social stigmas, sexism, racism, religiously harmful expressions (meaning things like 'you'll burn in hell, you sinner' and such) affects them.
It's really not that hard.