Nobody's going to use my own personal spec either, and neither should they, because it wouldn't be very good. I'm not an operating system designer, nor does everyone have the same requirements as me. That's why we have discussion first to get people interested in the idea, to indentify problems, and to suggest improvements. Such as this very thread.
Are you seriously suggesting that every single person who has problems with Unix should make up their own design before they are allowed to even talk about it?