Because everyone else is doing it....
(maybe that's what they should call memes, "that thing that everyone else does, so you need to too)
Take a picture of yourself right now.
Don't change your clothes, don't fix your hair...just take a picture.
Post that picture with NO editing.
Post these instructions with your picture.
I really wanted to post this one:
But this is the real me. Don't I look excited?