[sievebrain]

Non-idiomatic code is frowned on by all programmers working in every language.

The problems start when the "ma" is dropped from idiomatic. There's nothing in the design of any language that can stop people coming up with idioms and ideas that sound clever and become widely adopted but which actually cause problems down the line. Go is not immune to this. I'd argue Go is largely composed of such things to start with!