Could you please stop posting unsubstantive comments to Hacker News?
Edit: looks like we've had to give you a bunch of warnings already. If you'd please review https://news.ycombinator.com/newsguidelines.html and take the spirit of this site more to heart, we'd really appreciate it.
Pardon me? If eliminating potential children reduces environmental impact then eliminating oneself must reduce environmental impact at least as much and in all likelihood more. It's a valid addendum to the original parent. If it seems absurd, well then so is the claim that one should not have children for environmental reasons.
That said I will happily review the rules page again, I didn't intentionally violate it.