If your client gives you an "unregistered torrent" error, as long as you've already connected to the swarm (and the seeder keeps it active) I think you can still download it. New people won't be able to join the swarm, but those already in it can stay connected to each other.

The biggest concern I have is... when something is removed for any reason, it should automatically be listed in a "BANNED" list so that others do not make the mistake of uploading the same content again..and again.
Several months ago, I got a 90 day upload ban, as did a LOT of the other most prolific uploaders, because we uploaded files from a certain studio that was not, and is still not on their banned list. In fact, virtually all of the content that was deleted.. is already BACK! I am not sure if one moderator was sent to the guillotine or not, but things seem to have relaxed somewhat.. although.. your two new banned references concern me.
As Rodney King famously said.. "Can't we all just get along?" I recently got reamed for criticizing the posting of females on this gay site.. which is on the increase. I'm not convinced that gay men or a gay site called GAY tor.rent are interested in seeing females. In fact, many males are gay.. because of negative experiences involving females. My best friend ever.. was straight a couple of years ago. I was best friends with him when he was still straight. But then.. his last girlfriend did some things that I won't mention because I would get banned AGAIN.. but were so eggregious that my friend is now gay, and wants nothing more to do with females.