This is a good start, albeit I don't share the author's enthusiasm for eliminating letters that are used in sounding out the word. I would rather we focus on popular words and remove any ambiguity in how someone would speak them if they read it for the first time. I think it is essential for the future of English that people communicating online (using text) can avoid the ambiguity in how the receiver would read and speak their message. For that reason, truncating smaller words to use fewer letters while retaining how they sound is far more valuable.

As an example, bothering with miscellany is a waste of time. Almost no one uses it when writing a tweet or a text message. It's a bigger bang for buck to change words like through to thru or knife to nyfe and so on.