[hombre_fatal]

To me this is the ultimate "developer chasing shiny" at the expense of everything else.

Especially in the context of Go that hasn't even managed to use anything other than parentheses in its func definition syntax. No language has saturated the bracket options that come with the standard US keyboard so much that it's worth bringing in characters that you need additional tooling to type.

If (), <>, {}, and [] aren't enough for a language, something has gone very wrong.

[qtplatypus]

While you normally don't regard it as a bracketing we also use "", '' and `` to bracket things.

In Perl / / was used to bracket regrexs in C and many C languages /* */ is used to bracket comments.