I'm not sure why you think this is about feelings, and specifically feelings of offence. It's about the social structure of hacker culture, or about standards for professional and semi-professional programming events. It's about how people involved in this field expect to be treated, or not.
One way to give expression to a particular opinion would be expressing offence. (Another would be applauding.) If you ask me if I think this sort of thing is offensive, I will say "yes" -- after all, you asked me! -- but it's just a way of putting a marker this. It isn't anywhere close to the core of what I think about this topic.