Okay, to summarize:

Q: How should I block out kids?

A:

1. Kids are either great, or are terrible but interacting with them is great, or it's terrible but interacting with them makes you a better person.

2. Use earplugs

3. You're lucky to be in an airplane at all, so shut up and deal with it

By Reddit standards talking past one another is par for the course, but by HN standards this is an uncharacteristically frustrating exchange.