What is the benefit of terminating if … else if constructs with an else clause?

Question

Our organization has a required coding rule (without any explanation) that:

if … else if constructs should be terminated with an el

Answer 1

This, is done to make the code more readable, for later references and to make it clear, to a later reviewer, that the remaining cases handled by the last else, are do nothing cases, so that they are not overlooked somehow at first sight.

This is a good programming practice, which makes code reusable and extend-able.