It's pretty ridiculous that SIAI thinks it's a good idea to use Lojban to teach programs about ethics. The distinctive feature of Lojban is that it's easy to parse; but nowadays we have kinda decent natural language parsers. I used a constructed language to communicate with my class project in college, but only because I didn't want to bother with figuring out how to use an English parser, and because I knew no one but me would ever talk to it.