One of the possible advantages of the "preview" page from the proposal is that it might draw more eyeballs to new submissions than what they're receiving now.

One of the possible advantages of the "preview" page from the proposal is that it might draw more eyeballs to new submissions than what they're receiving now. This is because the design interleaves new submissions with submissions that have received some degree of filtering. I really spend very little time checking the new page, and I suspect I'm not alone in that. I don't know if HN would be better if regular users spent more time looking at the new page, but I suspect that it would. It's also worth noting that HN could interleave new submissions into the front page to get them more visibility, forgoing a preview type page altogether.