Usenet had kill files. It was invented before the Internet was widespread. There was even a term, plonk, for adding someone usually as parting message. Kill fi

Usenet had kill files. It was invented before the Internet was widespread. There was even a term, plonk, for adding someone usually as parting message. Kill files were required for reading Usenet. There were less bad posters, but since saw everything in newsgroup, it helped to filter the problems.