"oconnore" is a perfectly valid unique identifier on HackerNews that doesn't tie to anything about you if you don't have your email address in your profile. This is no different.
The difference is, it's a choice to post on a public website. homebrew is a package management tool, there is no expectation that it will send information about you to Google.
This. The reasons they articulate for suddenly deciding on performing this data collection, and for doing it via GA are laughable. I am sufficiently annoyed at this because of the generation of yet another outbound data stream from my system, but the fact that in all likelihood the project will do nothing with this data really annoys me. There is zero need for this in a package system.
