He's called it a career. He made an announcement last week, and Friday he officially shut down the store. I personally don't see why he wouldn't just leave it up and still have it be a source of income. But that's just me, Darke can do what he wants. Maybe with what he's planning on doing in the future, he doesn't want this to still be out there.
I just came across the thread with the announcement late Thursday night. And rushed to make 3 last second purchases before the clips were gone for good.