IP addresses being the only "personal" data the new telemetry proposal would plausibly be able to gather as well, which a lot of folks are complaining about.
Just to be clear, I don't think the Go module proxy is a bad thing, just saying that we've already crossed that "threshold" of potential personal data collection long ago.
So does Rubygems, PyPI, npm, or any other package tool.
If you want to have a broader discussion about package tools: be my guest. But people misrepresenting and banging on about the Go proxy specifically got boring a long time ago.
What I am arguing is that the people who are saying "this new telemetry design could allow them to gather ip addresses - which are 'personal' data" are arguing over a ship that has sailed years ago.
Apologies if I wasn't being clear enough.
That said, I don’t think that the go tool’s current behavior in regards to the module proxy server can be considered as phoning home.
The proposed metrics collection however absolutely would be bad phoning home behavior.