Usenet Death Penalty is a warning issued to people who use USENET (a global network of discussion forums) in a way that breaks the rules. When someone breaks the rules, the penalty is that no one in the USENET community can talk to them or see what they post. It’s like a time-out, so that people learn to follow the rules. It's like when mom says you have to go to your room for a few minutes if you do something wrong.