Well, here are, for example, these[0] posts, chuckle-worthy and worth seeing (thought-provoking, demonstrating how wrong yet confident we often are when judging innovative ideas and projects). While these[1] short remarks IMO better belong to Reddit.
[0] http://news.ycombinator.com/item?id=3624604 http://news.ycombinator.com/item?id=3624721 http://news.ycombinator.com/item?id=3624648 http://news.ycombinator.com/item?id=3624793
[1] http://news.ycombinator.com/item?id=3626067 http://news.ycombinator.com/item?id=3624808 http://news.ycombinator.com/item?id=3625825