When was the last time Facebook released a feature* that wasn't picked up by the majority of its users within 6 months? The newsfeed, pages, and video all becom

When was the last time Facebook released a feature* that wasn't picked up by the majority of its users within 6 months? The newsfeed, pages, and video all become huge fast, because Facebook keeps things intuitive. It's not about features. Facebook added nothing. They just reorganized what they had already, and in doing so changed their focus. *Not counting Facebook Marketplace, which was reliant on money to work.