Humor aside, my point is that YouTube and HN are pretty similar in their reliance on user-generated content. They both have no technical barriers to anyone signing up and posting anything they want: both have reactive post-publication moderation but not pre-publication vetting.

I think this is on balance a good and valuable thing about both sites. I was trying to show how your proposed solutions would, if applied here, make HN worse, as a way of illustrating why I don't think they're good solutions for YouTube.

(What made me think you were calling for pre-publication review was your "you can’t possibly expect us to vet all the content that we serve". Similarly, you objected to YouTube's approaches here as "reactive".)