I think surveys have fallen out of fashion because enough people have used telemetry or analytics now to know that what people tell you is often at complete odd

I think surveys have fallen out of fashion because enough people have used telemetry or analytics now to know that what people tell you is often at complete odds to their actual behaviour :) The difference between users self-reporting how they use software and what they actually do when you observe them using it is often massive, even amongst technical users.