It isn't innovation. We have these protocols because they make the language easier to understand and more expressive. Using terrible English doesn't make you edgey or innovative, it just makes you look like an idiot. The way English has evolved has generally been an increase to the complexity of the grammar compared to say 400 years ago. Part of the reason why Elizabethan texts are notoriously difficult to understand is that a lot of words have multiple meanings. If we all used MSN-speak then we would have the same problems.
Innovation in language takes the form of removing inconsistent relics, and spellings that are totally different to their phonetics. That's a good thing since it makes the language more efficient. Using the wrong words and punctuation serves no purpose.
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