[westoque]

It's not really about the user spying though, it's about the decision of making the user default of "yes, please track my usage so you can make your product better". I would rather have you ask the question first even though I mostly say yes, but transparency is key here.

[_odey]

I agree with this, just ask for consent, it's that simple.

Also, about removing features based on telemetry, of course people are going to disable or block data collection and you will make decisions based on incomplete data. If you must remove something, do it because it makes sense and it fits within your vision for the future of the project you maintain.