Having worked with the people doing those standard libraries, you're pulling justifications out of your butt for bad practices. Just as a start: variables name

Having worked with the people doing those standard libraries, you're pulling justifications out of your butt for bad practices. Just as a start: variables names should always be clear by context. You only see the one letter ones if its literally the next line or similar use case. Also, bare interface{} should basically never be the case for a function signature. None of the code you've described thus far would pass a proper review.