I've read that being a simple, yet more expressive, substitute for a pidgin language is one of the possible applications of Toki Pona.
In situations where people from multiple languages come together they need to be able to communicate with each other. Pidgins are introduced or developed in these situations, but there is a limited scope to what can be said in pidgins. Over time, pidgins creolise into full natural languages. I would like to know if a language like Toki Pona (or a similarly minimal conlang) has ever successfully replaced the use of a pidgin to allow more to be said, rather than letting the pidgin creolise naturally.