1. Users enjoy product for free.
2. Users pretty much never tell maintainers what is going wrong for them: no messages (much less proper bug reports), no contributions in any way!
3. Something invariably goes wrong for users that do the above.
4. Users immediately hit social media and try to tar the entire project, developer/company reputation, whatever. “Zero stars”, doesn’t work in their use case. You have surely seen these “reviews” before, and mindless tweets.
THIS is why I am torn on telemetry to some degree. IF you demand no auto-feedback in the name of privacy, THEN you should help out voluntarily OR not use free software! Yet software maintainers can’t count on this at all. They risk being hanged in the public square for every bug.