I'm a firm believer that you should never ask your user to make a decision or look over their shoulder. Not once ever. You should listen to their complaints and ideas when they come to you, then build your strategy on that. Be reactive, not prescriptive. That empowers the user, shows respect and results in a satisfactory product that benefits the user which after all is the end game.
Telemetry invades the user's privacy. Feedback does not empower the user because the user expects a reaction from it which is unlikely. A/B testing results in churn for the user which does not show respect, merely that they are a test subject.
Microsoft as a fine example could learn a lot from listening to their users rather than steamroll ahead based on collected telemetry and feedback data.
A fine example: People didn't want UWP/metro and still don't today. I have yet to meet one person who uses that side of windows 10. They wanted shit that worked, was faster and kept out of their way and didn't wreck the workflow that they had invested years in learning or had someone experienced close at hand to help them with it. 90% of the userbase just installs chrome and does everything in there as well so that stuff just gets in the way.