You, as a part of the Juggler development team, should want to write great documentation. Think of it as an investment to offload work. The more you educate everyone, the better they understand your stuff, the more likely that someone will spot your bugs, add new features, and most importantly use your feature, like you for it, and tell everyone about how cool you are. Do it for the people, but of interest to you is what you personally get back from writing documentation. Not just overwhelming satisfaction for a job well done, and not just an enormous lift of responsibility from not being the only one who understands that obfuscated code segment. It clarifies your thought process, uncovers bugs in your own logic, and produces that same clarity in other people who then love you for it - and in turn want to help you by developing more features and hunt for bugs.

Don't be lazy, document. It is vital to the success of your project!