Twitter changed because it sought to be media itself, instead of underlying everyone else’s media.

Yet the two entities that are called “Twitter”—the San Francisco-based corporation and the character-delimited social network—are not entirely disconnected. And similarly, no matter how many features Twitter-the-company tacks on to draw in new people, it’s still captive to the whims of Twitter-the-network. Recently, I’ve started to wonder if the corporation is trapped in more than a nominal way. What if the network is one of the company’s greatest obstacles, especially when it comes to growth?

Source: The Decay of Twitter – The Atlantic