What Is Killfile?
4.0BRAINROT SCOREKillfile An early feature (and the vocabulary word for it) that let Usenet users automatically hide posts from specific people or on specific topics — the direct ancestor of modern "block" and "mute" functions.
Origin:Introduced in early Usenet newsreaders like "rn" around the mid-1980s, the killfile was a configuration file listing authors, subjects, or keywords whose posts should be automatically filtered out of a user's view — giving individual users personal moderation power decades before platform-level block/mute buttons existed. The term survives as a piece of internet-history vocabulary explaining where the entire concept of blocking someone actually originated.
First Seen:1986
Peak Era:2026 (Internet Canon)
Aura Impact:+1 Aura (Explaining that block buttons descend from the killfile) / -1 Aura (Not knowing killfiles predate every modern platform's block feature)
EXAMPLE USAGE
"I put him in my killfile years ago, haven't seen a single post since."
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