I'm childfree myself and I'm active on a couple of childfree forums. I read horrible stories all the time from the childfree people who are single and dating — strangers telling you that you'll change your mind, single parents insisting that their kids are different and you'll love them, etc.
I think it's about time there's a place just for the childfree to find one another. Here's the website: yeschildfree.com — I launched it about 2 months ago and there are now more than 300 members on the site.
Hope to see you there!