I've had some similar thoughts that were also mentioned in the article. I don't know if I'm exactly an anti-natalist (I'm more of a live-and-let-live but if you're gonna breed, BY GOD do it right kind of person) I do think that the older I get the more I lean in that direction though.
Choosing not to have kids came to me very young because I didn't particularly like being around other kids. They were annoying and I preferred to be around adults or just on my own. Now that I'm much older, though, I see the benefits that my decision afforded me.
I'm glad to see that more and more people are waking up to the fact that they don't have to have them if they don't want them and that's OK. The lifescript isn't for most people. I blame it for a lot of unhappiness out there.
I prefer caring for animals and I'm much happier and better off with my furry and feathered family.