It is a bad thing. If we are limited by what is potentially offensive then all a person has to do to limit another person is be offended by them. People are supposed to be limited by ethics and reason not by offended people. All that mindset accomplishes is to enforce adherence to party orthodoxy rather than reason and ethics, which naturally leads to mindlessness, which is quite evident at the current time. Every philosophy worth its salt will tell you a person’s action should adhere to what is right according to principles rather than what they think others find favorable