This isn’t some standard polemic about “those stupid walled-garden networks are bad!” I know that Facebook and Twitter and Pinterest and LinkedIn and the rest are great sites, and they give their users a lot of value. They’re amazing achievements, from a pure software perspective. But they’re based on a few assumptions that aren’t necessarily correct. The primary fallacy that underpins many of their mistakes is that user flexibility and control necessarily lead to a user experience complexity that hurts growth. And the second, more grave fallacy, is the thinking that exerting extreme control over users is the best way to maximize the profitability and sustainability of their networks.
— Anil Dash from "The Web we Lost"