Meh, personally I welcome all criticism. If criticism is inaccurate, describes something that's perfectly acceptable, or refers to something out of one's control then it shouldn't hurt.

And if something someone says does hurt, then we're not upset that the person said it, we're upset because it's accurate, bad, and within our control. Or sometimes it just hurts because we can't satisfyingly work out which category the words fall into.

There isn't a case where someone's words themselves hurt. Any time someone is offended during a conversation it's always them offending themselves in one way or another.

Anyway, I'm already perfect, so if someone insults me then I'll usually try to help them to see if they will improve their insult to be more personal and cutting. I'm not insecure so why would I be vindictive? I'm actually just fascinated.