Now I can look at the big picture and facilitate people getting together to make the right things happen with the open source code. Then I can help make it happen. I'll try to make sure there's no duplication of effort and that the language is minimal and doesn't get encrusted with features that aren't strictly necessary or that overlap each other in some way. I think the success of mozilla.org is crucial. Not just for Netscape, but to the open source software community and to the world.
More eyes help.
That actually makes better software in many cases. So quality will go up. JavaScript fills a real need, and it's showing up in other places. Adobe has put it in Acrobat, for instance. At my last job, we never shipped product.