Hi. Author here. Didn't mean to irritate you. I'm quite familiar with the standard library. And I'm familiar with rants by the Go team about all the early code and patterns they wish they could wave away with a magic wand :) And that the std lib does some things that no user of Go typically needs to do. I could write another post about how net/http goes against most of what this post advises, and for a good reason. But I didn't talk about that because my point would be more easily lost and no one reading my post is writing a their own http/grpc server. I agree that someone shouldn't just say "best practices" and move on without an explanation. I didn't delve into this in the post because that wasn't the topic, and I overestimated how common this knowledge is (it's well documented inside of Google, and at the time of writing, I thought it was also published externally).

This "best practice" seems to be what most of the comments on this thread discuss, so I'll likely go in-depth with a post on this next week. Cheers.