Most people used to the proprietary software world, with no experience in open source software, are amazed that anything gets done. (And lots gets done in the open source, way more than in most proprietary software companies!) And people new to open source are usually at a loss as to where to start. Often they come with a great idea, tell a couple of people who confirm it's a great idea, and then ... well, and then they don't know what to do and the great idea fades.