Clean doesn't mean easy to use. I've worked with a system before that had a very clean, elegant design (message-passing/mailboxes), easy to implement, easy to

Clean doesn't mean easy to use. I've worked with a system before that had a very clean, elegant design (message-passing/mailboxes), easy to implement, easy to apply security measures to, small, efficient, everything you could ask for, and pretty much the first thing anyone who used it did was write a set of wrappers for it to make it look and feel more natural.