Most people who just want to eat an apple (even an apple a day) don't have bandwidth to pick them. Offer them the option of picking apples at an orchard for free vs. buying a bag of apples at a grocery, and most people will go buy the bag.
The same happens with an OS. Most people don't want a free labor-intensive solution. They want something that just works, runs their software and stays out of the way. People don't want to think about what OS they use.
Yes, typical users want a "just works" solution. But yc-news commenters aren't typical users. In the time it takes to post a comment on this forum, anyone here can just fix the problem themselves using OSM's very simple point-and-click editor.
Contrast to Google Maps, where the process of getting a change made can take weeks or months - if the fixes ever show up at all.
There really is a lot of power in having a map of the world that we can all "just edit".
IMO, HN readers can't be the target audience of a mapping product that's being used as a backbone of so many large projects. You have to make it painfully simple and give people a real incentive to do it.
The same happens with an OS. Most people don't want a free labor-intensive solution. They want something that just works, runs their software and stays out of the way. People don't want to think about what OS they use.