Why do people feel the need to speak ebonics when online?

Is it really so hard to speak in proper English? Honestly why do these aforementioned people feel the need to slaughter out language? All typing like that serves to accomplish is making you look like an retard that would rather beat themselves over the head with a lead pipe rather than pay attention in English class. Basically you show the world how much of an uneducated fool you are simply by typing a few words. You wonder why your ghetto ass gets made fun of can't accomplish anything in life? (mostly aimed at the even bigger idiots that actually speak like this) Look at your damned behavior. You choose to live your life in self imposed exile, and guess what? You deserve it.