The Usenet Death Penalty (UDP) refers to a policy implemented by some Usenet newsgroups where certain users or groups of users are banned from posting due to spamming or other abusive behaviors. This term colloquially describes the extreme measure taken against individuals or organizations that violate the community's norms and rules. The UDP often results in the total prohibition of an offending party's posts across Usenet, effectively rendering them unable to participate in the community.
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