Notably, Go makes a few other decisions that help with this approach:

1) `go fmt` fixes up whitespace, and is fast enough to run on every file-save. Although this sometimes screws up my undo stack.

2) Spaces are still used for alignment, but...

3) Only tabs are used before the content of a line, and...

4) Only spaces are used throughout the content of a line.

The primary reason that I prefer spaces is that it means that I don't have to constantly look at hidden characters while editing. However, go fix's enforcement of the begin/intra-line separation of tabs and spaces alleviates that problem: If it's touching the left margin, it's a tab, otherwise, it's a space.

Doesn't work with comments that float to the right of the code (such as the ones you get with M-; in emacs). Along these lines:

    fred          /* Fred */
    fred(fred) {  /* Fred */
        fred      /* Fred */
    } fred {
        fred      /* Fred */
    }

(The reader must make up their own mind about whether this is important or not.)