Ok, I get some people don't want kids, and I've got no problem with that. But for you "hardcore" nimrods:
1. I think "childfree" is a very silly thing to ID yourself as. So you don't want kids. Big fucking deal. Move on, please. Do you really need a label?
2. Do you really think it's cute to refer to kids as an "it"? I mean, hello--you were a child once, too. And, apparently, you still are.
3. Just ... shut up. I promise I won't gush about my kids to ANYONE who doesn't ask about them, CF or not. And I can assure you I won't let them ruin your home/store/whatever. So will you please do me the same courtesy and shut the fuck up?