Some litle issues

Which is the purpose of the year of the Copyright in the license section?
– some users ask if the page still works because they believe is no longer update. Is good to have the year where the book is launch, but maybe not in that place.

Our authors change the title of the page, and then, the URL of the page too.
– Is not possible to use the chapter id with the slug of the page? so, no matter the URL of the chapter, the people will find the content.
Also, the page would be load faster, since just the id would be required to find the content in the database. =>