When should you use the “this” keyword in C++? [duplicate]

Answer 1

It's usable when you have variables in a scope "above" the one you are working with.

int i;
public void foo() {
    int i;
    i = 3; // assign local variable
    this->i = 4; // assign global variable
}

Other than accessing variables in another scope, I myself agree with your "minimalistic choice". Less is more. :-)