I chose to be offended because we're amongst other friends in a Skype chat who promote this sort of thing: environments where discussions and comments that would offend people should be avoided. I'm fine with that. Who wouldn't be? The the degree they promote this to is equivalent to what's in that CoC. It's well-intentioned, as mentioned in this article.
What I'm not fine with is them being hypocrites about it. That's when I choose to be offended. I don't speak ill of anyone in that chat, but to have such "progressive" individuals claim this is the environment they want, and to selectively choose what they want to apply it to is reasonable grounds to get mad.
My problem with these codes of conduct are that the people who promote them have repeatedly persecuted me, and even went as far as to try and deface me in front of my employers.
I think the concept of it alone is fine, but the people advocating for them have been nothing but offensive to me, ironically enough. The people advocating for this haven't been peaceful, respectful individuals. They've made personal attacks on me.