Hahahahaha! That's a good summary of what we've seen recently.
It's a base64 encoded image. What's the big deal?
It's a joke mocking the "x drawn in just CSS!" stuff we've been seeing lately. The general point is that CSS isn't the right medium to do a lot of these things, and using ":before" and ":after" hacks are really just a mess.
(It's poking fun at the recent posts along the lines of "(object) created in CSS!")