I think you want "opt-out"?
> For opensource tools we should use another word like "Automated User Feedback", or something else without the baggage.
No, because some projects will immediately re-poison the well by using "Automated User Feedback" as a transparent euphemism for the same bad practices (and in fact, if I read that I would immediately assume it was nothing but a euphemism meant to mislead me). Might as well just say "opt-in telemetry" or maybe "opt-in telemetry with extra steps to make it less identifiable" if that's what we mean.
There's no such thing as "being transparent" about telemetry in OSS because I don't feel like reading a README for every single command that I apt install to see if it has anti-features.
Edward Bernays, propagandist, famously coined the term "Public Relations" to give propaganda a new name without the baggage the Germans gave it. https://youtu.be/DnPmg0R1M04?t=486
Telemetry, and the "baggage" associated with it, is the right word. We could be _more_ pejorative and call it "spying" or "tattling", but "telemetry" will do.
Me neither, as long as it is voluntary and requires an action on my part for it to happen.
I wouldn't mind transparent and honest telemetry in other tools like rustc or even vim. I don't see losing anything by sending my screen resolution and version of Xorg or Wayland. How is my privacy betrayed by this? I don't see what am I losing here, how am I betrayed, but I understand that these metrics will help make the tools better, give data to intelligent developers what to work on, what features are used more frequently.
I think the word telemetry is associated with bad vibes thanks to Microsoft and Google abusing telemetry, having it opt-in by default or giving users no control over it. For opensource tools we should use another word like "Automated User Feedback", or something else without the baggage.