Sure. But I have a question: why ? Why should we opt out of the telemetry? To me, this idea seems to not just be admitting defeat, it's ensuring defeat right from the start. Telemetry should always be opt-in. Yes, that means vendors will get much less data. It's on them to deal with it. On a related note, I wonder how long it takes until one of the vendors of popular CLI tools or desktop apps get fined for GDPR viola…
I'll play the devil's advocate. Most people will shoot support e-mails at you which are more or less "app crashes". If you have not already encountered the problem you have to walk them through tedious debugging process. If you collect crash reports, you have probably already fixed the problem. For usage data, it allows developers to focus on features that matter and know which ones you can remove. For example I don'…
I find tools that don't do this are generally more powerful because they allow for deep expertise and provide a ton of payoff if you put in the effort.
E.g: Vim. 80%+ of users probably don't use macros. Hell, I use them <1% of the time. But I'm sure glad they're there when I need them.