OK agree Reddit is not bad social media. But I'm thinking what we need more is a kind of massive knowledge processing engine, slightly described here. In short it would serve to apply kind of software production process to e.g. law creation where social network (very big community) could be involved. It could revolutionize how people work together in my view. Ticket (problem to solve or sth to improve)->Categorization->Team (or few teams) assignment-> Cost estimation->Whitepapers->Voting for best solution->Implementation