I honestly think explicit scopes, even though unorthodox, should become more of a thing. I personally do it in my C play projects to emphasize particular parts in a function as being independent "subordinate clauses", and with variables that only have a limited scope, but not being independent enough to be factored into a function--for example when the clause needs to be within reach of a label.

In C++ with RAII, the "emphasis" makes even more sense, to the extent that it doesn't make things ugly.