[Dr. Drib]

This is not directed toward any individual. Let's make that clear.

Repeated grammatical errors are due to a writer's ignorance of the English language, unless there is a reason for it to be otherwise.

One example that comes to mind where grammatical errors are actually a part of the story and totally acceptable would be "Flowers For Algernon," a great piece of literature by Daniel Keyes.

Ebooks with repeated [that's the key phrase] grammatical errors in them are deleted from my ebook, from calibre, from the vendor, and from my life. No remnant of such dastardly deeds shall remain to fog up the air that I breathe. I want sweet smelling roses, not the smell of offal. My nose hairs doth quiver with distaste!