This seems to be somewhat useful (similar to Balsamiq Mockups back in the day) for communicating "this is a work in progress, and not the final thing" to people

This seems to be somewhat useful (similar to Balsamiq Mockups back in the day) for communicating "this is a work in progress, and not the final thing" to people (usually the non-technical) who see a polished UI as indicative that an entire system is finished.