I'd like to do something like this eventually. But how would the crowd sourcing work? There needs to be a way to weed out the ones that aren't actually the same story.
Trusted users submit links. Other trusted users can vote up/down. Push them towards bottom, color code, etc. if ratio is not great. Have a few people review and finalize?
2014 https://news.ycombinator.com/item?id=8184463
2013 https://news.ycombinator.com/item?id=5775714