D.C.U.K. on Nostr: I would be okay with opt-out if the facts of the matter are clearly stated in an ...

I would be okay with opt-out if the facts of the matter are clearly stated in an installer or first time setup screen. Opt-in telemetry can be worse than useless since you select for more technical users that understand the value telemetry has in dealing with UI issues, but it shouldn't just be enabled by default with people completely clueless about it either. And if someone was collecting my retina scan with telemetry, I'd be concerned.