Can't anything be done??
I work in IT but am ignorant about the way Bitcoin works, so this may be a ridiculous suggestion. Surely if it is possible to trace a Bitcoin account/wallet thingy that is being used for purposes such as this, it should be possible to freeze it/block it/re-possess it as well? Come on chaps, this is the 21st Century and all we can do is sit watch the crims withdraw their ill-gotten gains?
Surely something can be done, even if it takes a while and requires new laws to be passed. We've got to stop them demonstrating that this is a successful business model.