Common courtesy and respect is, for the most part, a thing of the past. It was killed by the internet with no consequences for what someone can say. So sadly yes, you need to have thick skin in this day and age. This is a double edged sword though, it makes some think its ok to be rude or cruel to other people online so in turn it make the problem worse.
I will say some people get offended for the silliest things but thats another story and not necessarily saying thats the case here.
I do agree with @
csmith12 about CC. I don't believe he has ever meant any real harm, just looking to make us all laugh.
Personally i try to not post anything i wouldn't tell someone in person. But thats just me.