I'm guilty of it too to a degree. I made this post in an effort to improve communication between people, and I have just had to be incredibly rude to two people in the comments.
I try to be respectful, I really do. But, if someone is being a cunt, I have never possessed much of an ability to prevent myself from pointing out that they're being a cunt. I don't know if that makes me a cunt too, but it's difficult to ignore such ignorance.