The platform is starting to grow out of that and it's becoming a real challenge to the old media power structure.

该平台开始从中成长起来，它正在成为对旧媒体权力结构的真正挑战。

The story sounds a lot like the rise of other social media powers such as Instagram and Snapchat, both of which pitched themselves as alternatives to Facebook's big blue app.

这个故事听起来很像Instagram和Snapchat等其他社交媒体巨头的崛起，它们都将自己定位为脸书蓝色应用的替代品。