Is there a word for people who deliberately disregard standard spelling?

Cacographer is a real word that partially fits the requirements Wiktionary

One could create the term phonemographer but still not have the complete idea Wikipedia

If one were to create a term specifically for this question, it might be dacoitorthographer which would suggest a "bandit speller" Oxford Dictionaries.com

A term in use, but not formalized, is cacorthographer Ancestry.com, which I think is the closest to the desired meaning without pushing out of acceptable English and causing us to become dacoitorthographers.

I love "Cacographer" (and, one assumes, "cacography" for the practise), but there is also an existing term sensational spelling, which describes this practise of deliberate misspelling.

This is used to generate copyrightable brand names "Kool Aid", "Google" etc, and also in names for bands etc, where presumably the motivation is more to do with the sort of studied unlearnedness you refer to, rather than copyright concerns.