Yes to the first question, no to the second.

Yes there are more employees than founders, because there are more employees than founders in society. If Hacker News was just founders, it'd be about a hundredth of its current size.

But the negativity is likely because it's just harder to impress people here than on a site like say Twitter or Reddit. If you've been in tech, startups, etc for years, you've seen loads of crazy ideas get proposed, get tested and fail miserably. Loads of startups try these things and fold in about 6 months or so due to a lack of demand.

So, there's probably a bit more scepticism here. You've seen enough massive failures in the tech world that you're probably a little jaded towards another 'world-changing' idea seemingly unfounded in reality.