- Comments as directives[0]. Nobody finds this intuitive. I've never met anyone that saw what directives were doing and thought to change a comment.
- Comments as commands for the compiler[1]
- The state of go linting[2]. There are 30 different formatting tools that all frequently conflict with each other. It got so complicated that one project exists to manage installations of all the other ones (golangci-lint). Only difficulty is that most IDEs use gofmt and if your golangci-lint uses a different gofmt version than your IDE, you end up getting different formatting when you save vs. when you commit. This is only a problem because golangci-lint can't be installed using the go toolchain[3], so you can't just have dependency resolution solve this for you.