Usenet is here to stay, it is similar as if you pay for vip in order to be able to leech without seeding. This makes automated pirating legal in some countries (like mine) since only doing direct downloads from your usenet provider.
The usenet provider have servers which exchange bits of data with IDs similar like we do with torrenting.
As a user, you now go to a indexer, who gives you a map, with which bits of data you can construct your file.
So you then download each bit directly and put everything together and are rewarded with a normal file.
Until now I have found every release which is also in predb using the private indexers I have.