If someone deletes a page from an Episerver site, you can figure out what happened by looking at the changelog. What if someone changes access rights? I show how to locate pages that have their access rights set explicitly.
If you write code that is likely to fail, it is good practice to wrap that section of code in a try-catch-clause and handle the exception. For scheduled jobs, it's the opposite! If something fails, be sure to throw that exception!
You can have multiple pages with the same name, you can even have a block and an image with the same name. When we are communicating about content, the name is not always the best.
Preventing broken links is an important part of maintaining a website. Episerver's Link Validating job tries to help us, but unfortunately, it has its shortcomings.