If Y Combinator put ads on HN they can fund 8-10 more startups every year

Money is not the limit now.

Ycombinators limiting factor is not the amount of money but the amount of time they have to spend.

Given the nature of this community, if HN runs ads, I'd expect to see links to user-made alternate front-ends and ad-blocking extensions, right on the same page.

Assuming a bunch of us didn't ditch them for the RSS feed after the annoying ads showed up.

What kind of silly logic is this?

If they put ads on the site and bought adwords for the earned income NH would become the first economical singularity.