Would it be too much work to also have a listing of everyone's startup? I've thought about scraping profile pages or simply allowing people to freely add their information.

I know TechCrunch has this sort of thing, but there is a lot of clutter and also it would be nice to have, say, 50 listings on one page with brief information about each.

How could you avoid clutter? Tie it into HN so that when a user who is associated with the startup earns karma, their listing gets placed higher.