Let me try my armchair pop psychology. Maybe you are an attention whore. Maybe you think others wont read your posts if every word is not capitalized as in low self-esteem or maybe you are an arrogant narcissist who thinks so highly of yourself you capitalize your every word like what you say is more important than what others say. Do you speak normally or do you obnoxiously emphasize every word? If you are just naive, then its pitifully cute if for some sad reason you think others wont care to hear you out. Otherwise, its not cute or unique but just plain stupidity.