Stop. Just stop.
I hate it when people write, text, and/or tweet in ALL CAPS. Unless you’re trying to denote yelling, or trying to announce something (e.g., ‘I’M DEAD!’; ‘I LEFT MY HUSBAND!’) there is really no need for it, beyond emphasizing a word or two.
And for those of you who say ‘Whatever. I can do what I want, and it’s not my problem if you think I’m yelling’–take note: when you use CAPS LOCK through all of your correspondence, it is perceived as YELLING. And while it may not bother YOU, it may just bother your street cred.
BECAUSE PEOPLE ARE GOING TO THINK YOU ARE A MORON.
Angry. Brown. Fabulous. 
I HATE all caps. To me it says: I am too important to use the Shift key. You are too insignificant for me to use the Shift key. I don’t care what you think of me, even if you think I’m an idiot.