Social media made blogging easier:
Twitter and Facebook — and Pinterest, for that matter, and the rest of the social media universe — did two important things. Firstly they made publishing incredibly easy; and secondly they rewarded publishing by giving contributors immediate likes and replies and favs and other evidence that people really cared about what you were publishing. It was the endorphin rush familiar to old-school bloggers, democratized and accelerated.“
People share the news on social networks and therefore serve as aggregators. No wonder no one knows what RSS is.