I learnt and I don't use it anymore. Language changes and its now increasingly unacceptable.

The article you cited is essentially an interview where a few people state personal opinions. It does not present any meaningful theory of harm and does not give any kind of evidence of societal trends. The opinions cited are entirely ignorant of what people generally have in mind when they use words like "crazy" — because activism of this stripe is based on the premise that such intent is irrelevant. I fundamentally and profoundly reject that premise. I have since at least 2007 when I can first recall being exposed to it, and I find it even less reasonable the more I hear it asserted.