My last word is this: I am only trying to help you see that your smugness is not an asset. If you really do want to help change the world, then looking down upon the world and condemning them will only be to your disservice.
Concerning grammar, it is doubly important to have proper grammar when the only means of communicating is through text! There is no face to face communication, so what you say in text is all the other side is going to see! Say what you will, but most would agree that it shows laziness on your part and lack of education. And besides, if you intentionally misspell for the sake of convenience, then it is entirely possible for someone to misinterpret what you were trying to say, and thus a different meaning could be conveyed that was not actually intended. I'm sorry to say, but people will think you're stupid if you refuse to use proper grammar. Your arguments will only be weakened in the end.