and those posts will automatically be forwarded to any other news servers peered with the local one, while the local server will receive any news its peers have that it currently lacks. This results in the automatic proliferation of content posted by any user on any server to any other user subscribed to the same newsgroups on other servers.

As with BBSes and message boards, individual news servers or service providers are under no obligation to carry any specific content, and may refuse to do so for many