Working hours, work location, home location, favourite cafes, sick days, vacations, hotels, wealth level. And that's just from IP addresses and timestamps alone, and without cross-referencing with all the data that Google vacuums over other channels.
That ship has already sailed. The Go tool already by default makes network requests to the Go proxy, which potentially allows everything that you're talking about there. What's significantly different about this telemetry proposal?
First, making network requests when downloading packages is necessary for the tool to function and unavoidable. People who care about this will be using a VPN of some kind. It's just how the Internet works. But telemetry is something the tool author is choosing to add, not something that's necessary due to the architecture of our computing infrastructure.
Second, the Go telemetry would apparently create a unique, persistent user ID. Normal Internet use doesn't, there's just the IP address which is different from location to location, shared by a bunch of people behind the NAT, and can be masked using common tools.
And yeah, I know this is "anonymised"... but if you have one user ID which uses Go sometimes with an IP address from a particular apartment complex land sometimes from a particular office space, finding out which individual that user ID belongs to is trivial.
> First, making network requests when downloading packages is necessary for the tool to function and unavoidable.
It's technically not unavoidable. The Go authors could have made use of the proxy opt-in rather than opt-out, making the tool less usable as a result. A similar argument applies here, I think.
> Second, the Go telemetry would apparently create a unique, persistent user ID
Where did you see this? I scanned through the "Telemetry Design" article reasonably carefully and couldn't find any mention of this concept, and the type definition for the posted JSON (the `Report` type) doesn't seem to include any such user ID.
In the end, ISTM that you're not complaining about something that actually affects your privacy in any way, but just the _idea_ of telemetry. Is that really something worth taking such a hardline stance on?
