Compare this to how Google and Facebook roll out their changes. Notice that your Gmail and Facebook have new features every few weeks or months. If you don’t like a feature, there’s a button that allows you to go back to the old way of doing things. This button is Google’s and Facebook’s way of getting feedback from their users. They roll out the new feature to a set of users. If the users opt for the old feature, then Facebook and Google know they still need to improve the new feature. Then they roll it out again to another set of users. When they reach the point when few users opt for the old feature, then they know they’ve gotten the new feature right and make it a permanent part of their systems.