If you are writing in a professional area where it is critical that miscommunication is avoided, these are good tips. If you are intending to write fiction, ignore all of this, nobody actually cares. Just write. That is all that matters.
william shakespeare made up words
he is considered one of the greatest writers of all time
tbh I love his work and it and the adaptions made from it over the decades have stayed relevant
not because they were written proprly
butt bcaus da meening bhind hiz werdz is relevant