If people acting like jerks offends you that much, you are going to have a bad time on the internet. Although if you know of anywhere besides HN that is mostly reasonable, please PM me :)
nitpick: just as you are offended by rude comments, I am offended by advocating violence as a response to rudeness. I don't think you were serious, but I have to say there's nothing you can say or write that actually warrants a punch in the face.
Defending poor behavior perpetuates it. Stop tolerating crappy behavior from users, and move to platforms where such childishness is met with disciplinary action.
Use your imagination. It's possible to have reasonable discussions on the Internet. It's just very rare, and everyone's too scared to a) not be the 'best site with all users' and b) have a reputation for 'censoring' content.
nitpick: just as you are offended by rude comments, I am offended by advocating violence as a response to rudeness. I don't think you were serious, but I have to say there's nothing you can say or write that actually warrants a punch in the face.