I guess stories will go down in history as the perfect example of a feature that was perfect in a single product (Instagram) and everyone tried to copy it in its own product, failing miserably.
Though the best quote in that article is Kevin Systrom:
> Just like when Facebook invented the [News] Feed, and every social product was like, ‘That’s an innovation, how do we adapt that to our network,’ you’re going to see stories pop up in other networks over time, because it’s one of the best ways to show visual information in chronological order.