Yes, locked and deleted. Koikatsu card sharing threads are no longer allowed on the forums, though I do not think they have put up an official rule about this. People were sharing banned and worse content via the thread and private messages, and the thread was apparently taking up large amounts of mod time and effort just to moderate a single thread, and the community was not able to moderate itself properly after multiple tries apparently, so they were done with it. You can obtain the game here still, but any sharing you will have to do at another site.