I think it just undermines "colorless functions are good", not that go's functions are colored - they aren't. The problem is that "colors" (ie: "this is async")

I think it just undermines "colorless functions are good", not that go's functions are colored - they aren't. The problem is that "colors" (ie: "this is async") are helpful to the caller, they let them know which context they should be in when they perform that work.