I've been seeing the lower case "i" online all over the place lately. It seems that many people will start sentences with a capital "I" (in the me, myself, and I way), but use lowercase at other points in the sentence. Like: I don't understand why i have to go to work tomorrow. I really think i'd rather stay home.

You see? Why do people do this? What started this trend?

(FYI: I'm not offended by it. Just confused.)