My thoughts too. I suspect that the underwhelming reception to the RTX range and negative comments from various sites have perhaps made him overly defensive of his product. Maybe the shareholders are getting ratty because NVIDIA have put a lot of money into developing RTX and they aren't selling as well as expected? Maybe he is just bitter because AMD not supporting ray-tracing means it will take longer to become mainstream which in turn means less developers are likely to support it? Whatever, it really is unprofessional.